SAMSUNG AR07 Multi Air Conditioner User Manual

: June 13, 2024
: Samsung

Table of Contents

AR07 Multi Air Conditioner
Product Information:
Product Usage Instructions:

AR07 Multi Air Conditioner

Product Information:

The Multi Air Conditioner consists of both indoor and outdoor
units. The indoor unit models include AR07/09/12/15/18/24TSFABWKN,
AR07/09/12/15/18/24BSFCMWKN, AC009/012/018BNNDCH,
AC009/012/018BNLDCH, AJ009/012/015/018BNHDCH, AC009/012BN1DCH,
AC009/012/015/018BNJDCH, and AC012/018/024BNZDCH. The outdoor unit
models include AJ020BXJ2CH, AJ024BXJ3CH, AJ036BXJ4CH, AJ048BXJ5CH,
AJ020BXS3CH, AJ024BXS4CH, AJ030BXS4CH, and AJ036BXS4CH.

Product Usage Instructions:

1. Precautions:

Avoid dangerous contact during service.
Avoid static electricity and do not use extension cords.
Keep children away during operation.
Follow proper disposal methods for the unit.
Take precautions for the pump down process.

2. Product Specifications:

2.1 The Feature of Product:

FJM (Free Joint Multi): The outdoor unit design uses space more
efficiently and can deliver comfort to 2-5 rooms with a single
outdoor unit.
Universal Connection Multi Inverter: The series allows for
universal connection of indoor units to other Samsung outdoor
units.
Auto Addressing & Auto Pipe Inspection: The installation
procedure is simplified with automatic address setting and pipe
inspection.
Setting to Cool or Heat only mode: This function enables
specific mode operation for all connected indoor units.
Wi-Fi Function (SmartThings app): Control the Multi Air
Conditioner with the SmartThings app for easy home automation.

2.2 Product Specifications:

2.2.1 Indoor Unit:

Type: Wall-mounted
Model:
- Wind-Free QF2 GEO AR07TSFABWKN
- Wind-Free QF2 GEO AR09TSFABWKN
- Wind-Free QF2 GEO AR12TSFABWKN
- Wind-Free QF2 GEO AR15TSFABWKN
Performance:
- Cooling Capacity: 2.05 kW (7,000 Btu/h)
- Heating Cooling Capacity: 2.20 kW (7,500 Btu/h)
- Noise Sound Pressure: 38 dB(A)
- Power: 1, 208-230V, 60Hz
Power Consumption:
- Cooling: 40 W
- Heating: 40 W
Operating Current:
- Cooling: 0.4 A
- Heating: 0.4 A
Net Size: 889mm (W) 299mm (H) 215mm (D)
Net Weight: 10.6 kg
Refrigerant Pipe:
- Liquid: 6.35 mm
- Gas: 9.52 mm
Fan Type: Cross flow fan
Part Type: Fan Motor

MULTI AIR CONDITIONER

INDOOR UNIT
AR07/09/12/15/18/24TSFABWKN AR07/09/12/15/18/24BSFCMWKN AC009/012/018BNNDCH AC009/012/018BNLDCH AJ009/012/015/018BNHDCH AC009/012BN1DCH AC009/012/015/018BNJDCH AC012/018/024BNZDCH

OUTDOOR UNIT
AJ020BXJ2CH AJ024BXJ3CH AJ036BXJ4CH AJ048BXJ5CH AJ020BXS3CH AJ024BXS4CH AJ030BXS4CH AJ036BXS4CH

AIR CONDITIONER

CONTENTS
1. Precautions 2. Product Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6. Wiring Diagram 7. Reference Sheet

Contents
1. Precautions···································································································································1-1 1-1 Precautions for the Service……………………………………………………………………………………….1-1 1-2 Precautions for the Static Electricity and PL……………………………………………………………..1-1 1-3 During operation ……………………………………………………………………………………………………. 1-2 1-4 Disposing of the unit ……………………………………………………………………………………………… 1-2 1-5 Precautions for the Pump Down……………………………………………………………………………… 1-2 1-6 Others ……………………………………………………………………………………………………………………. 1-2
2. Product Specifications ··············································································································· 2-1 2-1 The Feature of Product …………………………………………………………………………………………… 2-1 2-1-1 Features …………………………………………………………………………………………………………. 2-1 2-2 Product Specifications…………………………………………………………………………………………….2-3 2-2-1 Indoor Unit ……………………………………………………………………………………………………..2-3 2-2-2 Outdoor Unit…………………………………………………………………………………………………. 2-8 2-3 The Comparative Specifications of Product …………………………………………………………..2-10 2-4 Combination Table (Outdoor-Indoor)……………………………………………………………………. 2-12 2-5 Accessory and Option Specifications ……………………………………………………………………. 2-14 2-5-1 Indoor Unit Accessories ………………………………………………………………………………..2-14 2-5-2 Outdoor Unit Accessories……………………………………………………………………………..2-19
3. Disassembly and Reassembly··································································································· 3-1 3-1 Outdoor Unit …………………………………………………………………………………………………………..3-2 3-1-1 AJ020BXJ3CH, AJ024BXJ4CH……………………………………………………………………….. 3-2 3-1-2 AJ036BXJ4CH, AJ020BXS3CH, AJ024BXS4CH, AJ030BXS4CH …………………….. 3-5 3-1-3 AJ048BXJ5CH, AJ036BXS4CH………………………………………………………………………3-12
4. Troubleshooting ························································································································ 4-1 4-1 Display and Check Method …………………………………………………………………………………….. 4-1 4-1-1 Indoor unit ………………………………………………………………………………………………………4-1 4-1-2 Outdoor Unit …………………………………………………………………………………………………. 4-6 4-2 Setting an indoor unit address and installation option………………………………………….. 4-8 4-3 Setting Option……………………………………………………………………………………………………… 4-11 4-3-1 Setting Option………………………………………………………………………………………………4-12 4-3-2 The procedure of setting option …………………………………………………………………..4-12 4-3-3 Setting an indoor unit address (MAIN/RMC) ………………………………………………..4-14 4-3-4 Setting an indoor unit installation option (suitable for the condition of each installation location)………………………………4-15 4-3-5 Changing the addresses and option individually………………………………………… 4-29 4-3-6 Changing a particular option………………………………………………………………………. 4-30 4-4 Items to be checked first …………………………………………………………………………………….. 4-34

Contents
4-5 Setting to Cool or Heat only mode, checking and Cool/Heat modes operation test 4-39 4-6 Fault Diagnosis by Symptom ………………………………………………………………………………..4-41
4-6-1 Indoor………………………………………………………………………………………………………….. 4-41 4-6-2 Outdoor unit is not powered on Initial diagnosis …………………………………….. 4-45 4-6-3 Checking Outdoor Controller ……………………………………………………………………… 4-46 4-6-4 Outdoor unit fan error…………………………………………………………………………………. 4-47 4-6-5 Compressor startup error, Compressor lock error, Compressor rotation error4-48 4-6-6 IPM Over current error………………………………………………………………………………… 4-49 4-6-7 Checking Temperature sensor……………………………………………………………………..4-50 4-7 PCB Inspection ……………………………………………………………………………………………………. 4-52 4-7-1 Cautions for Part Replacement ……………………………………………………………………. 4-52 4-7-2 Procedure……………………………………………………………………………………………………. 4-52
5. PCB Diagram······························································································································· 5-1 5-1 Indoor unit ……………………………………………………………………………………………………………… 5-1 5-2 Outdoor PCB Diagram ………………………………………………………………………………………….. 5-13
6. Wiring Diagram ·························································································································· 6-1 6-1 Indoor Unit …………………………………………………………………………………………………………….. 6-1 6-2 Outdoor unit …………………………………………………………………………………………………………..6-6
7. Preference Sheet··························································································································7-1 7-1 Selecting Area for Installation ………………………………………………………………………………….7-1 7-1-1 Indoor Unit ……………………………………………………………………………………………………… 7-1 7-1-2 Outdoor Unit…………………………………………………………………………………………………… 7-2 7-1-3 Remote Control Unit ……………………………………………………………………………………….7-2 7-2 Connecting Up and Purging the Circuit…………………………………………………………………… 7-3 7-3 Refrigerant Refill……………………………………………………………………………………………………. 7-4 7-4 Refrigerant Adjustment …………………………………………………………………………………………. 7-5 7-5 Flare Nut Fixing Torque ………………………………………………………………………………………….. 7-5 7-6 “Pump down” Procedure ………………………………………………………………………………………… 7-6 7-7 Index of Model Name ……………………………………………………………………………………………… 7-7 7-8 Refrigerating Cycle Diagram ………………………………………………………………………………… 7-10 7-9 Pressure & Capacity mark …………………………………………………………………………………….. 7-14 7-10 The abbreviated technology words & the definition of technology terms ……………. 7-14 7-11 Q & A for Non-trouble ………………………………………………………………………………………….. 7-15 7-12 Common sense of refrigeration…………………………………………………………………………… 7-18

1. Precautions
1-1 Precautions for the Service

Precautions

· Users should not install the air conditioner by themselves. Ask the dealer or authorized company to install the air conditioner except the window-type air conditioner in U.S.A and Canada.

or d su na eg

· If you don’t install the air conditioner properly, it may cause a fire, a water leakage or an electric shock.

· You must install the air conditioner according to the national wiring regulations and safety regulations.

· Install the indoor unit higher than 2.5m from the floor to avoid the injury caused by the operation of the fan. (except the window-type air conditioner)

Avoid Dangerous Contact

· The manufacturer is not responsible for any accidents or injury caused by an incorrect installation. When installing the built-in type air conditioner, keep all electric cables such as the power cable and the connection cord in pipes, ducts, or cable channels to protect them from the danger of impact or any other incidents.

· More than 2 indoor units should be installed when you use Free Joint Multi air conditioner.

· AJ020BXJ2CH outdoor unit – AR18/24TSFABWKN, AR18/24BSFCMWKN, AJ018BNNDCH, AJ018BNLDCH, AC***BNHDCH, AJ015/018TNJDCH, AC018/024BNZDCH indoor units cannot be connected.
· AJ020BXS3CH outdoor unit – AR18/24TSFABWKN, AR18/24BSFCMWKN, AJ018BNNDCH, AJ018BNLDCH, AC018BNHDCH, AJ015/018TNJDCH, AC018/024BNZDCH indoor units cannot be connected.
· AJ024BXJ3CH/AJ024BXS4CH outdoor units – AR24TSFABWKN/AR24BSFCMWKN, AC024BNZDCH indoor units cannot be connected

1-2 Precautions for the Static Electricity and PL

· If the power cord of the air conditioner is damaged, it must be replaced by themanufacturer or a qualified person in order to avoid a hazard.

· The air conditioner must be plugged into an independent circuit if applicable or connect the power cable to the auxiliary circuit breaker. An all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact opening of >3mm.

· Do not extend an electric cord to the air conditioner.
· The air conditioner must be plugged in after you complete the installation.

No Tapping and No Extension Cords

Samsung Electronics

1-1

Precautions

1-3 During operation

· Do not repair the air conditioner at your discretion. It is recommended to contact a service center directly.

· Never spill any kind of liquid on the air conditioner. If this happens, turn off the air conditioner and contact an authorized service center.

· Do not insert anything between the airflow blades to prevent damage of the inner fan and consequent injury. Keep children away from the air conditioner.
· Do not place any obstacles in front of the air conditioner.

No children Nearby

· Do not spray any kind of liquid into the indoor unit. If this happens, turn off the air conditioner and contact a service center.

· Make sure that the air conditioner is well ventilated at all times: Do not place a cloth or other materials over it.

· Remove the batteries if you don’t use the remote control for a long time. (If applicable)

· Use the remote control within 7 meters from the indoor unit. (If applicable)

1-4 Disposing of the unit
· Before throwing out the air conditioner, remove the batteries from the remote control. · When you dispose of the air conditioner, consult your dealer. If pipes are removed incorrectly, refrigerant may
blow out and cause air pollution. When it contacts with your skin, it can cause skin injury. · The package of the air conditioner should be recycled or disposed of properly for environmental reasons.

1-5 Precautions for the Pump Down
· The pipes should have no leaks during installation, and the compressor must be stopped before removing connecting pipes for pump down work. Operating the compressor while the service valve is open and coolant pipe is not properly connected may cause explosion or injury due to abnormal high pressure created inside the coolant cycle as the air can be absorbed through the pipe.
· Pump Down work procedure (When uninstalling the product) – Turn on the air conditioner, select cooling operation, and run the compressor for more than 5 minutes. – Release the high pressure and low pressure valve caps. – Close the high pressure valve completely using an L-wrench. – After about 2 minutes, close the low pressure valve completely.
1-6 Others
· Never store or load the air conditioner upside down or sideways to prevent the damage to the compressor. · Young children or infirm persons should be always supervised when they use the air conditioner. · Max current is measured according to IEC standard for safety. · Current is measured according to ISO standard for energy efficiency. · For servicing the units containing flammable refrigerants, safety checks are required to minimise the risk of
ignition. · Servicing shall be performed following the controlled procedure to minimize the risk of flammable refrigerant
or gases.

1-2

Samsung Electronics

2. Product Specifications
2-1 The Feature of Product

Product Specifications

2-1-1 Features
FJM (Free Joint Multi) The simpler design of the outdoor unit uses space more efficiently.

Universal Connection Multi Inverter(Free Joint Multi) Series delivers comfort to 2~5 rooms with a Single Outdoor Unit. Free Joint Multi added Universal indoor units, which can be universally connected to other Samsung outdoor units, to all lineup.

Various Indoor units & combinations · Wind-Free Wall Mounted · Wind-Free Slim 1Way Cassette · Wind-Free Mini 4way Cassette · Home Duct · Duct S · Console · MPAH

Samsung Electronics

2-1

Product Specifications

Auto Addressing & Auto Pipe Inspection
Improved Installation Procedure – It can automatically set the address of the indoor unit and inspect pipes with one push of the button.
Installation is very simple.

AJ020BXJ2CH/AJ024BXJ3CH

AJ036BXJ4CH/AJ048BXJ5CH/AJ020BXS3CH/ AJ024BXS4CH/AJ030BXS4CH/AJ036BXS4CH

Setting to Cool or Heat only mode This function enables the indoor units connected to the outdoor unit to operate in a specific mode. When you want to operate all indoor units with the cooling mode or heating mode.
Wi-Fi Fuction (SmartThings app) SmartThings app is the easy way to turn your home into a smart home. Control the FJM with only one application. This feature is optional to the several models.

2-2

Samsung Electronics

Product Specifications

2-2 Product Specifications

2-2-1 Indoor Unit

Type

Wall-mounted

Model

Wind-Free QF2 GEO AR07TSFABWKN AR09TSFABWKN AR12TSFABWKN AR15TSFABWKN

Performance

Cooling

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

kW
Btu/h dB(A) ,V,Hz

2.05 2.20 7,000 7,500
38
1, 208-230V, 60Hz

2.64 3.22 9,000 11,000
38
1, 208-230V, 60Hz

3.52 3.52 12,000 12,000
39
1, 208-230V, 60Hz

4.40 5.28 15,000 18,000
40
1, 208-230V, 60Hz

Power

Power Consumption

Cooling Heating

W

40 40

Operating Current

Cooling Heating

A

0.4 0.4

Net Size

WHD

mm

889299215

Size

Net Weight

kg

10.6

Refrigerant Pipe

Liquid Gas

mm

6.35 9.52

Fan

Type

–

Cross flow fan

Part

Type

Fan Motor

Code

–

BLDC

–

DB31-00636A

Heat Exchanger

Row, Step 2Rx16S + 1Rx8S 2Rx16S + 1Rx8S 2Rx16S + 1Rx8S 2Rx16S + 1Rx8S

Refrigerant Control Device

– EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Operating Current

Cooling Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Fan Motor

Type

Code

Heat Exchanger

Refrigerant Control Device

kW
Btu/h
dB(A) ,V,Hz
W
A
mm kg
mm
Row, Step –

Wall-mounted

Wind-Free QF3 GEO

AR18TSFABWKN

AR24TSFABWKN

5.28

6.15

6.04

8.06

18,000

21,000

20,600

27,500

42

47

1, 208-230V, 60Hz

50

0.5

1055299215

12.5

6.35

12.7

15.88

Cross flow fan

BLDC

DB31-00637A

2Rx16S + 1Rx8S

EEV NOT INCLUDED

Samsung Electronics

2-3

Product Specifications

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Cooling Operating Current
Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Type Fan Motor

Code

Heat Exchanger

Refrigerant Control Device

kW
Btu/h
dB(A) ,V,Hz
W
A
mm kg
mm
Row, Step –

AR07BSFCMWKN 2.05 2.20 7,000 7,500

Wall-mounted Wind-Free QF1 AIRISE
AR09BSFCMWKN 2.64 3.22 9,000 11,000

AR12BSFCMWKN 3.52 3.52 12,000 12,000

37

1, 208-230V, 60Hz 30 30 0.3 0.3
820299215 9.1 6.35 9.52
Cross flow fan BLDC
DB31-00694A

2Rx16S

EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Cooling Operating Current
Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Fan Motor

Type

Code

Heat Exchanger

Refrigerant Control Device

kW Btu/h

Wind-Free QF2 AIRISE AR15BSFCMWKN 4.40 5.28 15,000 18,000

Wall-mounted

Wind-Free QF3 AIRISE

AR18BSFCMWKN

AR24BSFCMWKN

5.28

6.45

6.15

7.03

18,000

22,000

21,000

24,000

dB(A)

40

41

45

,V,Hz
W
A
mm kg
mm
Row, Step –

1, 208-230V, 60Hz 40 40 0.4 0.4
889299215 10.6 6.35 9.52
Cross flow fan BLDC
DB31-00636A
2Rx16S + 1Rx8S
EEV NOT INCLUDED

1, 208-230V, 60Hz 50 50 0.5 0.5
1055299215 11.5 6.35 12.7
Cross flow fan BLDC
DB31-00636A
2Rx16S
EEV NOT INCLUDED

1, 208-230V, 60Hz 50 50 0.5 0.5
1055299215 11.5 6.35 15.88
Cross flow fan BLDC
DB31-00636A
2Rx16S
EEV NOT INCLUDED

2-4

Samsung Electronics

Product Specifications

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Operating Current

Cooling Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Fan Motor

Type

Code

Heat Exchanger

Refrigerant Control Device

kW
Btu/h
dB(A) ,V,Hz
W
A
mm kg
mm
Row, Step –

Cassette

Wind-Free Slim 1Way

AC009BN1DCH

AC012BN1DCH

2.64

3.52

4.10

9,000

12,000

14,000

32

35

1, 208-230V, 60Hz

25

0.26

970135410

10.0

6.35

9.52

Cross flow fan

BLDC

DB31-00636G

2Rx12S

EEV NOT INCLUDED

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Cooling Operating Current
Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Type Fan Motor

Code

Heat Exchanger

Refrigerant Control Device

kW
Btu/h
dB(A) ,V,Hz
W
A
mm kg
mm
Row, Step –

AC009BNNDCH 2.67 2.93 9,100
10,000
31
1, 208-230V, 60Hz 30 30 0.3 0.3
575250575 11.5 6.35 9.52
Turbo Fan BLDC
DB31-00578C
2Rx8S
EEV NOT INCLUDED

Cassette Wind-Free Mini 4Way
AC012BNNDCH 3.17 3.96
10,800 13,500
34
1, 208-230V, 60Hz 30 30 0.3 0.3
575250575 11.5 6.35 9.52
Turbo Fan BLDC
DB31-00578C
2Rx8S
EEV NOT INCLUDED

AC018BNNDCH 5.10 5.86 17,400
20,000
39
1, 208-230V, 60Hz 30 30 0.3 0.3
575250575 11.5 6.35 9.52
Turbo Fan BLDC
DB31-00578C
2Rx8S
EEV NOT INCLUDED

Samsung Electronics

2-5

Product Specifications

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Cooling Operating Current
Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Fan Motor

Type

Code

Heat Exchanger

Refrigerant Control Device

kW Btu/h

Duct

Home Duct-1

AC009BNLDCH

AC012BNLDCH

2.64

3.52

4.10

9,000

12,000

14,000

dB(A)

33

34

,V,Hz
W
A
mm kg
mm
Row, Step –

1, 208-230V, 60Hz 120 120 1.06 1.06
900199440 18.9 6.35 9.52
Cross Flow FAN BLDC
DB31-00671A
2Rx10S
EEV NOT INCLUDED

Home Duct-2 AC018BNLDCH
5.28 5.86 18,000 20,000
35
1, 208-230V, 60Hz 120 120 1.06 1.06
1100199440 22.0 6.35 12.7
Cross Flow FAN BLDC
DB31-00671B
2Rx10S
EEV NOT INCLUDED

Type

Duct

Model

AJ009BNHDCH

Duct S AJ012BNHDCH AJ015BNHDCH

AJ018BNHDCH

Performance

Cooling

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

kW Btu/h

2.64 3.52 9,000 12,000

3.52 4.10 12,000 14,000

4.40 5.28 15,000 18,000

5.28 6.15 18,000 21,000

dB(A)

30

31

33

34

,V,Hz 1, 208-230V, 60Hz 1, 208-230V, 60Hz 1, 208-230V, 60Hz 1, 208-230V, 60Hz

Power

Cooling

Consumption Heating

W

240 240

Operating Current

Cooling Heating

A

2.1 2.1

Net Size

WHD mm 850250700

850250700

Size

Net Weight

kg

26.5

Refrigerant Pipe

Liquid Gas

mm

6.35 9.52

6.35 12.7

Fan

Type

–

Cross Flow FAN Cross Flow FAN Cross Flow FAN Cross Flow FAN

Part

Fan Motor

Type

Code

–

BLDC

–

DB31-00639B

Heat Exchanger

Row, Step

3Rx16S

Refrigerant Control Device – EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED

2-6

Samsung Electronics

Product Specifications

Type

Floor Standing

Model

AC009BNJDCH

Console AC012BNJDCH AC015BNJDCH

AC018BNJDCH

Performance

Cooling

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

kW Btu/h

2.64 2.96 9,000 10,100

2.99 3.81 10,200 13,000

4.40 5.28 15,000 18,000

4.98 5.57 17,000 19,000

dB(A)

35

38

42

43

,V,Hz 1, 208-230V, 60Hz 1, 208-230V, 60Hz 1, 208-230V, 60Hz 1, 208-230V, 60Hz

Power

Cooling

Consumption Heating

W

54 54

Operating Current

Cooling Heating

A

0.49 0.49

Net Size

WHD mm

720620199

Size

Net Weight

kg

15.7

Refrigerant Pipe

Liquid Gas

mm

6.35 9.52

6.35 12.7

Fan

Type

–

Turbo FAN

Part

Type Fan Motor

Code

–

BLDC

–

DB31-00517A

Heat Exchanger

Row, Step

2Rx20S

Refrigerant Control Device – EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED EEV NOT INCLUDED

Type

Model

Cooling

Performance

Capacity

Heating Cooling

Heating

Noise

Sound Pressure

Power

Power Consumption

Cooling Heating

Cooling Operating Current
Heating

Net Size

WHD

Size

Net Weight

Refrigerant Pipe

Liquid Gas

Fan

Type

Part

Type Fan Motor

Code

Heat Exchanger

Refrigerant Control Device

kW Btu/h

AC012BNZDCH 3.52 3.96 12,000 13,500

dB(A)

38

,V,Hz
W
A
mm kg
mm
Row, Step –

1, 208-230V, 60Hz 170 170 1.5 1.5
4451092533 44.5 6.35 9.52
Sirroco FAN BLDC
DB81-05891A
2Rx24S
EEV NOT INCLUDED

Unitary MPAH AC018BNZDCH 5.28 5.86 18,000 20,000
40
1, 208-230V, 60Hz 170 170 1.5 1.5
4451092533 44.5 6.35 12.7
Sirroco FAN BLDC
DB81-04294H
3Rx24S
EEV NOT INCLUDED

AC024BNZDCH 7.03 7.91 24,000 27,000
43
1, 208-230V, 60Hz 170 170 1.5 1.5
4451092533 44.5 6.35 15.88
Sirroco FAN BLDC
DB81-04294J
3Rx24S
EEV NOT INCLUDED

Samsung Electronics

2-7

Product Specifications

2-2-2 Outdoor Unit

Type

Model

AJ020BXJ2CH

Performance

Capacity

Cooling Heating

Noise

Sound Pressure

Power

Btu/h
dB(A) ,V,Hz

18000 22000
48 1, 208-230, 60

Power

Cooling

Consumption Heating

W

1410 1730

Operating Current

Cooling Heating

A

6.8 8.3

Net Size WHD mm 880 x 798 x 310

Size

Net Weight

kg

53.0

Refrigerant Pipe

Liquid Gas

6.352 mm
9.521+12.7*1

Type

– Twin BLDC Rotary

Compressor Model Name – UG4T200FUAE4

Part

Output

kW

5.919

Type Fan Motor
Code

–

BLDC

–

DB31-00579A

Heat Exchanger

Row, Step

2R*36S

Refrigerant Control Device –

EEV

Type

–

Refrigerant

Factory Charging

g

R-410A 2200

Free Joint Multi AJ024BXJ3CH AJ036BXJ4CH

AJ048BXJ5CH

22000

32000

47000

25000

36000

48500

48

54

52

1, 208-230, 60

1730

2560

4470

1780

2550

3790

8.3

12.2

21.4

8.5

12.2

18.1

880 x 798 x 310 940 x 998 x 330 940 x 1,210 x 330

57.0

76.5

87.5

6.35*3

6.35*4

6.35*5

9.521+12.72

9.522+12.72

9.522+12.73

BLDC Rotary Twin BLDC Rotary Twin BLDC Rotary

G8T260FUAEW KTF310D43UMT KTF310D43UMT

7.766

10.01

BLDC

DB31-00579A

2R*36S

2R*46S

2R*56S

EEV R-410A 2650

EEV R-410A 3100

EEV R-410A 3800

2-8

Samsung Electronics

Product Specifications

Type

Free Joint Multi

Model

AJ020BXS3CH AJ024BXS4CH AJ030BXS4CH AJ036BXS4CH

Performance

Capacity

Cooling Heating

Noise

Sound Pressure

Power

Btu/h
dB(A) ,V,Hz

21000 22000
54 1, 208-230, 60

25000 25000
54 1, 208-230, 60

28400 28600
54 1, 208-230, 60

34000 36600
52 1, 208-230, 60

Power

Cooling

Consumption Heating

W

1560 1610

1920 1830

2270 2090

2720 2550

Operating Current

Cooling Heating

A

7.4 7.7

9.2

10.9

13.0

8.8

10.0

12.2

Net Size WHD mm 940 x 998 x 330 940 x 998 x 330 940 x 998 x 330 940 x 1,210 x 330

Size

Net Weight

kg

77.5

78.5

87.5

Refrigerant Pipe

Liquid Gas

mm

6.353 9.523

6.354 9.522+12.7*2

Type

– Twin BLDC Rotary Twin BLDC Rotary Twin BLDC Rotary Twin BLDC Rotary

Compressor Model Name – UG8T300FUBJU UG8T300FUBJU UG8T300FUBJU KTF310D43UMT

Part

Output

kW

9.171

10.01

Type Fan Motor
Code

–

BLDC

–

DB31-00579A

Heat Exchanger

Row, Step

2R*46S

2R*56S

Refrigerant Control Device –

EEV

Type

–

Refrigerant

Factory Charging

g

R-410A 3400

R-410A 3600

Samsung Electronics

2-9

Product Specifications
2-3 The Comparative Specifications of Product

Type

Design

Model Name

AJ020BXJ2CH AJ024BXJ3CH

Specifications

Net Size [WHD,mm]

Net Weight [kg]

Noise [dB(A)] Sound Pressure

53.0

48

880798310

57.0

48

Normal

AJ036BXJ4CH

940998330

76.5

54

Outdoor Max Heat

AJ048BXJ5CH

9401210330

87.5

52

AJ020BXS3CH

77.5

54

AJ024BXS4CH

940998330

78.5

54

AJ030BXS4CH

78.5

54

AJ036BXS4CH

9401210330

87.5

52

2-10

Samsung Electronics

Product Specifications

Type
Wall Mounted
Cassette
Indoor Duct
Console

Design

Model Name
AR07/09/12/15TSFABWKN AR18/24TSFABWKN
AR07/09/12BSFCMWKN AR15BSFCMWKN
AR18/24BSFCMWKN

Specifications

Net Size [WHD,mm]

Net Weight [kg]

Noise [dB(A)] Sound Pressure

889299215

10.6

38/38/39/40

1055299215

12.5

42/47

820299215

9.1

37/37/37

889299215

10.6

40

1055299215

11.5

41/45

AC009/012BN1DCH

970135410

10.0

32/35

AC009/012/018BNNDCH 575250575

11.5

31/34/39

AC009/12BNLDCH AC018BNLDCH

900199440

18.9

1100199440

22.0

33/34 35

AJ009/012/015/018BNHDCH 850250700

26.5

30/31/33/34

AC009/012/015/018BNJDCH 720620199

15.7

35/38/42/43

MPAH

AC012/018/024BNZDCH 4451092533

44.5

38/40/43

Samsung Electronics

2-11

Product Specifications
2-4 Combination Table (Outdoor-Indoor)

Design

Model Name

Model

AR07/09/12TSFABWKN AR15TSFABWKN AR18TSFABWKN AR24TSFABWKN
AR07/09/12BSFCMWKN AR15BSFCMWKN AR18BSFCMWKN AR24BSFCMWKN

AC009/012BN1DCH

AC009/012BNNDCH
AC018BNNDCH
AC009/12BNLDCH AC018BNLDCH
AJ009/012BNHDCH AJ015BNHDCH AJ018BNHDCH

Model
Capacity [kBtu/h] 7/9/12
15 18 24 7/9/12 15 18 24
9/12

AJ020BXJ2CH 20

9/12

18

9/12

18

9/12

15

18

AJ024BXJ3CH 24

AJ036BXJ4CH 36

AJ048BXJ5CH 48

AJ020BXS3CH 20

AJ024BXS4CH 24

AJ030BXS4CH 30

AJ036BXS4CH 36

2-12

Samsung Electronics

Product Specifications

Design

Model Name

Model

AC009/012BNJDCH AC015BNJDCH AC018BNJDCH AC012BNZDCH AC018BNZDCH AC024BNZDCH

Capacity [kBtu/h] 9/12 15 18
12
18
24

AJ020BXJ2CH 20

AJ024BXJ3CH 24

AJ036BXJ4CH 36

AJ048BXJ5CH 48

AJ020BXS3CH 20

CAUTION

Combination Guide for Installation including AJBNHDCH / AJBNZDCH – Only one AJBNZDCH (MPAH) indoor unit can be included in the combination. – AJBNHDCH (Duct S) indoor units cannot be connected to outdoor unit model AJ020BXJ2CH. – If AJBNHDCH and ACBNZDCH indoor units are included in the combination, total sum of indoor unit index must be configured so as not to exceed the outdoor index.
– If the indoor unit combination includes AJBNHDCH / ACBNZDCH indoor units and does not meet the installation combination restrictions, E563 error will display and the system will not operate. . If error code E563 occurs, Cool Mode Try run and Pipe Check operations are still possible.

Combination Guide for Installation including AJBNHDCH / ACBNZDCH

Outdoor Unit

Mixed

4rooms

3rooms

2rooms Combination

Installation Installation Installation Installation

Ratio

Outdoor Index

AJ024BXJ3CH Enabled

N/A

Enabled

1.0

24

AJ036BXJ4CH Enabled

N/A

Enabled

1.0

36

AJ048BXJ5CH Enabled

N/A

Enabled

1.0

48

AJ020BXS3CH Enabled

N/A

Enabled

1.0

21

AJ024BXS4CH Enabled

N/A

Enabled

1.0

24

AJ030BXS4CH Enabled

N/A

Enabled

1.0

30

AJ036BXS4CH Enabled

N/A

Enabled

1.0

36

Mixed installation means the case of mixing AJBNHDCH and ACBNZDCH.

AJ024BXS4CH 24

AJ030BXS4CH 30

AJ036BXS4CH 36

Samsung Electronics

2-13

Product Specifications

2-5 Accessory and Option Specifications
2-5-1 Indoor Unit Accessories
AC***BN1DCH

Item

Description

Code No.

PAD INSTALL

DB69-01947A,B DB69-03017C,D

SEAL-DRAIN ASSY

DB62-05810A

Q’ty AC009BN1DCH AC012BN1DCH
1
–

Remark

1

HOSE DRAIN-JOINT

DB94-01258C

1

GROMMET-HANGER

DB63-00237A

8

MANUAL USERS

DB68-11305A

MANUAL INSTALL INSULATION-BASE
CABLE TIE CARD WARRANTY

DB68-11272A DB72-00401C DB65-10088C 6801-002246

1 Indoor Unit
1
2 3
1

BRACKET-BUSHING

DB61-04340A

1

2-14

Samsung Electronics

AC***BNNDCH
Item

Product Specifications

Description ASSY DRAIN-HOSE

Code No.

Q’ty

DB94-03287A

1

Remark

CABLE TIE

DB65-10088C

6

SEAL-DRAIN ASSY SEAL-DRAIN ASSY SEAL-DRAIN ASSY MANUAL USERS MANUAL INSTALL CARD WARRANTY

DB62-11028A

1

DB62-11028H
DB62-11028J DB68-11208A DB68-11209A 6801-002246

1

Essential Offer

(Indoor Unit)

1

1 1

1

BRACKET-CONDUIT

DB61-05788A

1

Samsung Electronics

2-15

Product Specifications

ACBNLDCH, AJBNHDCH

Item

Description

MANUAL USERS

MANUAL INSTALL INSULATION-COVER BAND

Code No.
ACBNLDCH : DB68-11206A
AJBNHDCH : DB68-11295A
ACBNLDCH : DB68-11207A
AJBNHDCH : DB68-11296A
DB62-04318S

INSULATION-HOSE INSULATION-HOSE D
ASSY DRAIN HOSE INSULATION-TUBE OUT

DB62-11028M DB62-11028E DB62-11028F DB94-06964B

GROMMET-HANGER

DB63-00237A

Q’ty

Remark

1

1
1
1 1
Indoor Unit 1 1
4

CARD WARRANTY

6801-002246

1

CABLE TIE

6501-001110

8

2-16

Samsung Electronics

Product Specifications

AC***BNJDCH Item

Description

Code No.

Q’ty

ASSY WIRELESS REMOCON

DB96-24901P

1

Remark

BATTERY-MN

4301-000121

MANUAL USERS

DB68-11212A

MANUAL INSTALL

DB68-11213A

HOLDER-REMOCON

DB61-06087A

SCREW-TAPPING(M4*L12)

6002-000213

CARD WARRNATY

6801-002246

SEAL-INSTALL OUTLET SEAL-PIPE SVC CABLE TIE

B62-05580V DB62-05691C DB65-10088C

2
1 Essential Offer (Indoor Unit)
1
1 2
1
1 1 8

Samsung Electronics

2-17

Product Specifications
AC***BNZDCH Item

Description CARD WARRANTY
MANUAL INSTALL

Code No. 6801-002246
–

Q’ty

Remark

1 Indoor Unit
1

2-18

Samsung Electronics

Product Specifications

2-5-2 Outdoor Unit Accessories

AJ*BXCH

Item

Descriptions

Code No.

Q’ty

DB67-00477A (AJ020TXJ2CH, AJ024TXJ3CH)

Drain Plug

DB67-00806A

1

(AJ036TXJ4CH, AJ048TXJ5CH,

AJ**TXSCH)

Rubber Leg

DB73-20134A

4

Remark

Installation Manual

DB68-11297A (AJ020BXJ2CH/AJ024BXJ3CH)
DB68-11298A (AJ036BXJ4CH, AJ048BXJ5CH,
AJ**BXSCH)

Nipple Connector

DB67-00789A

Flare Nuts

DB60-30010B

Ass’y Tube Connector

DB96-16155A DB96-16155B

1
1 (AJ020BXJ2CH)
2 (AJ024BXJ3CH)
1 (AJ020BXJ2CH)
2 (AJ024BXJ3CH)
2 (AJ*BX4CH)
3 (AJBX*5CH)
2 (AJ020BXS3CH, AJ*BX4CH, AJBX*5CH)

12.7mm 9.52mm 12.7mm 9.52mm 12.7mm 9.52mm 12.7mm 15.88mm

The design and shape can be changed according to the model.

Samsung Electronics

2-19

3. Disassembly and Reassembly
Necessary Tools
Item +Screw driver
Monkey spanner

Disassembly and Reassembly
Remark

Samsung Electronics

3-1

Disassembly and Reassembly

3-1 Outdoor Unit
3-1-1 AJ020BXJ3CH, AJ024BXJ4CH

No

Parts

Procedure

1

Common Work

You must turn off the Power before

&

disassembly.

Control Out

Loosen 4 fixing screws(CCW) of the Cover-

Valve. (Use +Screw Driver).

Remark

Loosen each 9 screws(CCW) on Cabi-Top. (Use +Screw Driver).
Loosen 2 screws(CCW) fixed to assemble Plate Control Out with Cabinet-Side RH. (Use +Screw Driver.)
Loosen 10 fixing screws(CCW) on CabinetSide RH. (Use +Screw Driver.)

3-2

Samsung Electronics

No

Parts

Procedure

Loosen each 7 screws (CCW) on Cabinet Front. (Use +Screw Driver.)

Disassembly and Reassembly
Remark

Loosen each 4 screws (CCW) on CabinetSide LF. (Use +Screw Driver.)

2

Ass’y

Detach the Motor Wire from the PCB of

Control Out

Ass’y Control Out.

Detach comp wire and pressure switchwire from the PCB of A’ssy Control Out.
Detach 2 Connect Wires from Reactor.

Samsung Electronics

3-3

Disassembly and Reassembly

No

Parts

Procedure

Detach several connectors from the PCB of Ass’y Control Out.
Loosen 2 screws (CCW) fixed to assemble Ass’y Control Out with Partition. (Use +Screw Driver.)

Remark

3

Fan

Loosen the fixing nut (CW) and detach

&

the Fan.

Motor

(Use Monkey Spanner.)

Loosen 4 fixing bolts and detach the

Motor. (Use +Screw Driver.)

Loosen 2 fixing screws and detach the

Bracket Motor. (Use +Screw Driver.)

4

Heat Exchanger 1) Release the refrigerant at first.

&

Disassemble the Inlet and Outlet Pipe by

Compressor

welding.

Loosen the fixing 3 screws of the

Heat Exchanger. (Use +Screw Driver.)

Detach the Heat Exchanger.

Befor you disassemble the pipes and

Condensor, be sure that there should be

no refrgerant remained in the unit.

Loosen 3 nuts of the Compressor.

(Use Monkey Spanner.)

Detach the Compressor.

3-4

Samsung Electronics

Disassembly and Reassembly

3-1-2 AJ036BXJ4CH, AJ020BXS3CH, AJ024BXS4CH, AJ030BXS4CH

No

Parts

Procedure

1

Cabi side RH

You must turn off the Power before

disassembly.

Loosen 6 fixing screws (CCW) on the

Cabinet-Side RH. (Use +Screw Driver).

Remark

2

Cabi Front RH 1) Loosen 3 fixing screws (CCW) on the

Cabinet-Front RH. (Use +Screw Driver).

3

Cabi Top

Loosen 7 or 9 fixing screws (CCW) on the

Cabi-Top. (Use +Screw Driver).

Samsung Electronics

3-5

Disassembly and Reassembly

No

Parts

Procedure

4

Guard Cond

Detach the Sensor from the Guard Cond.

Remark

Loosen 4 fixing screws (CCW) on the Gurad Cond. (Use +Screw Driver).

5

Cabi Back RH

Detach the Sensor from the Cabi-Back

RH.

Loosen 5 fixing screws (CCW) on CabiBack RH. (Use +Screw Driver).
Pull the hook of Cabi Back RH from the Bracket Valve.

3-6

Samsung Electronics

No

Parts

Procedure

6 Plate Case Control 1) Loosen 2 fixing screws (CCW) on the Plate

Support

Case Control Support.

(Use +Screw Driver).

Disassembly and Reassembly
Remark

7

Cabi Front LF

Loosen 10 fixing screws (CCW) on the

Cabinet-Front LF. (Use +Screw Driver).

Samsung Electronics

3-7

Disassembly and Reassembly

No

Parts

Procedure

Remark

8

Fan

Loosen the fixing nut (CW).

(Use Monkey Spanner)

Detache the fan.

9

Motor

Detach the Motor Wire from PCB of A’ssy

Control Out.

Loosen 4 fixing bolts (CCW) and detach the Motor. (Use +Screw Driver.)

10

Backet Motor

Loosen 2 fixing screws (CCW) and detach

the Bracket Motor. (Use +Screw Driver.)

3-8

Samsung Electronics

No

Parts

Procedure

11

Control Out

Detach Comp-Wire and Pressure-Wire

from PCB of A’ssy Control Out.

Disassembly and Reassembly
Remark

Loosen 4 fixing screws (CCW) and detach the Bracket Motor. (Use +Screw Driver.)
Separate A’ssy Control Out.

Samsung Electronics

3-9

Disassembly and Reassembly

No

Parts

Procedure

12 Ass’y 4way Valve 1) Disassemble the pipes in both inlet and outlet with welding torch.

Remark

Before you disassemble the pipes
and Condenser, be sure that there should be no refrigenrant remained in the unit.

13

Assy EEV Valve 1) Disassemble the pipes in both inlet and

outlet with welding torch.

Loosen 2 fixing screws (CCW) and detach the Bracket Valve. (Use +Screw Driver.)

14

Compressor

Loosen fixing nut (CCW) on the Cover-

Terminal. (Use Monkey Spanner or adjust-

able Wrench.)

3-10

Samsung Electronics

No

Parts

Procedure

Separate the Conpressor Felt Sound.
Loosen 3 nuts (CCW) at the bottom of Compressor. (Use Monkey Spanner.)

Disassembly and Reassembly
Remark

When assembling Comp Wire, make sure to match the color and location of the wire with the picture.

15

Heat Exchanger 1) Loosen 2 fixing screws(CCW) on both

sides. And loosen 1 fixed screws(CCW)

Partition with base.(Use +Screw Driver.)

Samsung Electronics

3-11

Disassembly and Reassembly

3-1-3 AJ048BXJ5CH, AJ036BXS4CH

No

Parts

1

Cover valve

Procedure
Turn off the power before disassembly necessarity.

Remove the 2 screws from the cover valve and seperate it. (Use + Screw Driver)

Remark

2

Cabinet Front RH 2) Remove the 4 screws from the Cabinet

Front RH and separate it.

(Use + Screw Driver)

3

Cabinet Top

Remove the 8 screws which is fixed to

each side of cabinet top and separate it.

(Use + Screw Driver)

3-12

Samsung Electronics

No

Parts

Procedure

4

Guard Cond

Pull out the sensor from the guard cond

and separate it.

Disassembly and Reassembly
Remark

Remove the 4 screws which is fixed to guard cond and separate it. (Use + Screw Driver)

5

Cabinet Back RH 1) Pull out the sensor from the cabinet back

RH and separate it.

Remove the 4 screws which is fixed to each side cabinet back RH and separate it. (Use + Screw Driver)

Samsung Electronics

3-13

Disassembly and Reassembly

No

Parts

Procedure

6

Plate Control

Remove the 1 screw from the Plate

Conrtol and separate it.

(Use + Screw Driver)

Remark

7

Cabinet Front LH 1) Remove the 10 screws from the canbinet

Front LF and separate it.

(Use + Screw Driver)

3-14

Samsung Electronics

No

Parts

7

Cabinet Front LH

Procedure

Disassembly and Reassembly
Remark

8

Fan

Remove the 2 fixing nuts like the picture

on the right side. (Use Hexagon Wrench,

Monkey Spanner, Hexagon Socket)

Samsung Electronics

3-15

Disassembly and Reassembly

No

Parts

Procedure

9

Motor

Separate the Fan Propeller.
Remove the 8 screws which is fixed to

Motor. ( Use + Screw Driver )

Remark

Separate the Motor Wire connector from the Outdoor Unit Control Part.

10

Bracket Motor 1) Remove the 2 screws from the Bracket

Motor and separate it.

(Use + Screw Driver)

3-16

Samsung Electronics

4. Troubleshooting
4-1 Display and Check Method

Troubleshooting

4-1-1 Indoor unit AC***BN1DCH
Abnormal conditions

LED lamp display

Operation Defrost Timer

Fan

Blue Yellow

Filter reset

Remarks

Power reset

Error of temperature sensor in the indoor unit (Open/ Short)

X

Error of heat exchanger sensor in the indoor unit

Error of the outdoor temperature sensor Error of the condensor temperature sensor Error of the discharge temperature sensor

1. No communication for 2 minutes between indoor

units (Communication error for more than 2

minutes)

2. Indoor unit receiving the communication error from

outdoor unit

3. Outdoor unit tracking 3 minutes error

X

4. When sending the communication error from

the outdoor unit, the mismatching of the

communication numbers and installed numbers

after completion of tracking. (Communication error

for more than 2 minutes

1. Error of electronic expansion valve open

2. 2’nd detection of high temperature cond

3. 2’nd detection of high temperature discharge

X

4. Error of reverse phase

5. Compressor down due to 6th detection of freezing

Detection of the float switch

X

EEPROM error EEPROM option error

Error on indoor fan motor (E154)

X

Outdoor valve clogging error
Error due to connecting outdoor units that do not support the WindFree function

X

: On : Flickering x: Off · If you turn off the air conditioner when the LED is flickering, the LED is also turned off.

X X X X

1. Indoor unit

error (Display

is unrelated

X

with operation) 2. Outdoor unit

error (Display

is unrelated

with operation

X X X

Samsung Electronics

4-1

Troubleshooting

AC***BNNDCH
Abnormal conditions

Opertion

LED lamp display

Defrost

Timer

Filter

Power reset

x

Error of tempreature sensor in the indoor unit (Open/Short)

x

Error of heat exchanger sensor in the indoor unit (Open/Short)

x

Error of fan motor in the indoor unit

x

Error of the outdoor temperature sensor Error of the condensor temperature sensor Error of the discharge temperature sensor

x

No communication for 2 minutes between indoor and outdoor unit (communication error for more than 2 minutes)

x

Error of outdoor unit Error of the terminal block thermal fuse (Open)

x

Detection of the float switch

x

EEPROM error EEPROM option error

Motion detect sensor error

x

Mixed operatiion error

x

Outdoor valve clogging error

x

Miss matching error between indoor unit and outdoor unit

x

: On : Flickering x: Off · If you turn off the air conditioner when the LED is flickering, the LED is also turned off.

4-2

Samsung Electronics

Troubleshooting

ACBNLDCH, AJBNHDCH
· If an error occurs during the operation, one or more LED flickers and the operation is stopped except the LED. · If you re-operate the air conditioner, it operates normally at first, then detect an error again.
Indicators Concealed Type

Abnormal conditions

Green Red Standard Type

Operating

Power reset

x

Error of Room sensor in the indoor unit(Open/Short)

x

Error of EVA-IN,EVA-OUT sensor in the indoor unit (Open/Short)

x

Error of Fan motor in the indoor unit

x

Error of Outdoor or Terminal Block Thermal Fuse (Open)

x

Clogging of outdoor’s service valve

x

Detection of the float switch

x

Error of EEPROM or OPTION SETTING

1. No communication for 2 minutes between indoor units (Communication error for more than 2 minutes)

2. Indoor unit receiving the communication error from outdoor unit

3. Outdoor unit tracking 3 minutes error

x

4. When sending the communication error from the outdoor unit, the mismatching of the communication numbers and installed numbers after completion of tracking. (Communication error for more than 2 minutes)

: On : Flickering x: Off · If you turn off the air conditioner when the LED is flickering, the LED is also turned off.

1. Indoor unit error (Display is unrelated with operation)
2. Outdoor unit error (Display is unrelated with operation)

Samsung Electronics

4-3

Troubleshooting

AC***BNZDCH
Abnormal conditions

Concealed Type

Indicators

GREEN RED Standard Type

Remarks

Power reset

X

Error of Room sensor in the indoor unit(Open/Short)

X

Error of EVA-IN,EVA-OUT discharge sensor in the indoor unit(Open/Short)

X

Error of Fan motor in the indoor unit

X

1. Error of Outdoor 2. Thermal Fuse Open Error of Indoor’s Terminal Block
1. Clogging of outdoor’s service valve 2. the refrigerant leakage

X

Detection of the float switch

X

1. Error of EEPROM 2. Error of Option setting

1. Error of Outdoor Temp. sensor 2. Error of Cond Temp. sensor 3. Error of discharge Temp. sensor

X

1. No communication for 2 minutes between indoor

units (Communication error for more than 2

minutes)

2. Indoor unit receiving the communication error from

outdoor unit

3. Outdoor unit tracking 3 minutes error

X

4. When sending the communication error from

the outdoor unit, the mismatching of the

communication numbers and installed numbers

after completion of tracking.(Communication error

for more than 2 minutes)

: On : Flickering x: Off · If you turn off the air conditioner when the LED is flickering, the LED is also turned off.

1. Indoor unit error (Display is unrelated with opteration)
2. Outdoor unit error (Display is unrelated with operation)

4-4

Samsung Electronics

Troubleshooting

· If an error occurs, is displayed on the wired remote controller. If you would like to see an error code, press the Test button.

Display

Explanation Communication Error between indoor and outdoor unit

Remark

Error of Room sensor in the indoor unit(Open/Short)

Error of Eva In sensor in the indoor unit(Open/Short)

Error of Eva Out sensor in the indoor init(Open/Short)

2nd Detection of the float switch

Error of Fan motor in the indoor unit

EEPROM error

EEPROM option setting error

Error of Terminal Block’s Thermal Fuse(Open)
No communication for 2minutes betwwen indoor units (Communication error for more than 2minutes)
Clogging of outdoor’s service valve

Option code miss matching among the indoors (only for DPM)
Error of communication down between the indoor unit and wired remote controller after 3minutes. Error of communication down between the indoor unit and wired remote controller after completion of 10 times tracking.
COM1/COM2 Cross-installed error

Check indoor option code Wired remote controller error

Samsung Electronics

4-5

Troubleshooting

4-1-2 Outdoor Unit
The table below list the self-diagnostic routines. For some of error, you must contact an authorized service center. If an error occurs during the operation, it is displayed on the outdoor unit PCB MAIN-OUT.

– PCB MAIN – OUT (AJ020BXJ2CH, AJ024BXJ3CH)

– PCB MAIN OUT (AJ020BXS3CH, AJ**BX4CH, AJ048BXJ5CH)

88 SEG DISPALY

88 SEG DISPRALY

Error Code E108 E190 E199 E201
E202 E203 E221 E237 E251 E320 E330 E331 E332 E333 E334 E335 E336

Explanation ERROR DUE TO REPEATED ADDRESS SETTING(WHEN 2 OR MORE DEVICES HAS THE SAME ADDRESS WITHIN THE NETWORK) PIPE CHECK ERROR
PIPE CHECK OPERATION HAS NOT BEEN COMPLETED COMMUNICATION ERROR BETWEEN INDOOR AND OUTDOOR UNIT(INSTALLATION NUMBER SETTING ERROR, REPEATED INDOOR UNIT ADDRESS, INDOOR UNIT COMM COMMUNICATION ERROR BETWEEN INDOOR AND OUTDOOR UNIT(COMMUNICATION ERROR ON ALL INDOOR UNITS, OUTDOOR UNIT COMMUNICATION CABLE ERROR) COMMUNICATION ERROR BETWEEN INVERTER PBA AND MAIN PBA
ERROR ON AMBIENT TEMPERATURE SENSOR (SHORT OR OPEN)
ERROR ON CONDENSOR TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON DISCHARGE TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON COMPRESSOR OLP TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE IN-A TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE IN-B TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE IN-C TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE IN-D TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE IN-E TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE OUT-A TEMPERATURE SENSOR(SHORT OR OPEN)
ERROR ON PIPE OUT-B TEMPERATURE SENSOR(SHORT OR OPEN)

Remark

4-6

Samsung Electronics

Troubleshooting

Error Code E337 E338 E339 E401 E404 E416 E422 E440 E441 E458 E461 E462 E463 E464 E465 E466 E467 E468 E469 E470 E471 E474 E475 E483 E484 E485 E488 E500 E554 E563 E590

Explanation ERROR ON PIPE OUT-C TEMPERATURE SENSOR(SHORT OR OPEN) ERROR ON PIPE OUT-D TEMPERATURE SENSOR(SHORT OR OPEN) ERROR ON PIPE OUT-E TEMPERATURE SENSOR(SHORT OR OPEN) OUTDOOR UNIT FREEZING-SAFETY CONTROL(COMPRESSOR STOP) OUTDOOR UNIT OVERLOAD-SAFETY CONTROL(COMPRESSOR STOP) COMPRESSOR OPERATION STOP DUE TO DISCHARGE TEMPERATURE PROTECTION CONTROL HIGH PRESSURE BLOCKAGE CONTROL HEATING MODE RESTRICTION DUE TO HIGH AIR TEMPERATURE COOLING MODE RESTRICTION DUE TO LOW AIR TEMPERATURE FAN MOTOR ERROR OPERATION FAILURE OF COMPRESSOR COMPRESSOR OPERATION STOP DUE TO FULL LOAD CURRENT CONTROL COMPRESSOR OPERATION STOP DUE TO OLP TEMPERATURE CONTROL ERROR DUE TO OVER- CURRENT OF COMPRESSOR VOLTAGE-LIMIT ERROR OF COMPRESSOR ERROR DUE TO LOW/OVER VOLTAGE OF DC LINK IN INVERTER PBA ABNORMAL RPM IN COMPRESSOR OR WIRE FOR COMPRESSOR HAS NOT BEEN CONNECTED ERROR DUE TO OUTPUT CURRENT SENSOR OF INVERTER PBA(SHORT/OPEN) ERROR DUE TO DC LINK VOLTAGE SENSOR OF INVERTER PBA(SHORT/OPEN) OUTDOOR UNIT EEPROM READ/WRITE ERROR OUTDOOR UNIT EEPROM READ/WRITE ERROR(OTP) ERROR ON IPM/PFCM TEMPERATURE SENSOR OF INVERTER PBA(SHORT OR OPEN) FAN2 MOTOR ERROR OVERVOLTAGE OF H/W DETECT DC LINK PFC OVERLOAD(OVER CURRENT) ERROR ERROR DUE TO INPUT CURRENT SENSOR OF INVERTER PBA(SHORT/OPEN) INCOMING VOLTAGE SENSOR ERROR IPM/PFCM OVERHEAT ERROR THE REFRIGERANT LEAKS COMPLETELY FROM THE OUTDOOR UNIT ERROR DUE TO INDOOR UNIT SOFTWARE VERSION COMBINATION(INCOMPATIBLE INDOOR UNITSOFTWARE ON A SYSTEM) INVERTER EEPROM CHECKSUM ERROR

Remark

Samsung Electronics

4-7

Troubleshooting

4-2 Setting an indoor unit address and installation option
1. Setting the indoor unit addresses automatically
· This product is prohibited one indoor unit installation. Don’t use pipe checking operation and auto addressing CAUTION mode when one indoor unit is installed.

– PCB MAIN – OUT (AJ020BXJ2CH, AJ024BXJ3CH)

– PCB MAIN OUT (AJ020BXS3CH, AJ**BX4CH, AJ048BXJ5CH)

DISPLAY1 DISPLAY2 K1 K2 K3 K4

1 Turn on the outdoor unit, and then check whether the display 1/2 indications are displayed “E199″ code. During the initial , display 1 shows ” ” and display 2 shows the connected indoor number. · If different display code is shown, see Troubleshooting on page 37 and take corrective actions.
2 Push once the K1 button.
3 After the operations described above have been performed, the system starts in Cooling or Heating mode, depending on the external ambient temperature. After a few minutes (from a minimum of 3 to 5 minutes for the internal unit), the system stops automatically, completing the self-test and addressing procedure. ” ” appears on the display of the outdoor unit.
4 If you press the K1 button one more time, ” ” disappears and inspection is complete.

· At this point it is possible to start the internal units in the desired mode.

NOTE If ”

“doesn’t display, the procedure has failed and it is therefore necessary to read ALL the operator’s

manual before repeating the operating described in steps 1-2-3-4.

4-8

Samsung Electronics

Troubleshooting

3. Setting the indoor unit addresses manually
1. Review all the following elements in the installation: · Installation site strength · Piping connection tightness to detect any gas leakage · Connection wiring · Heat-resistant insulation of the piping · Drainage · Earthing wire connection
2. Manually set options in each room’s the indoor unit by referring to page 4-11.
3. Press the K3 button once or reset the outdoor unit.

· The Display 1/2 indications are the same as in the automatic address setting mode. NOTE

Setting of Key and Display of the outdoor unit

· Key option of the outdoor unit – K1: Function button – K3: Reset button

Key Push

K1

K3

1

Pipe Checking Operation

2

Cool Mode Try run

3

Heat Mode Try run

4

Pump Down

Reset

5

Inverter Fault Detection (Comp#1)1)

6

Auto Mode Try run

7

Finish Key Operation

For more information of the Cool or Heat or Auto mode Try run test, refer to page 4-39. 1) Indication on the display and action to take when an inverter fault is detected.

SEG1 SEG2 SEG3 SEG4 Action to take

Fault

detection is

–

in progress

OK

–

PBA defect:

NG

Replace the

PBA

Check

Manual inspection is
required

Going into fault
detection mode failed

Try fault detection
again

Samsung Electronics

4-9

Troubleshooting
· K4 View mode Display changes – PCB MAIN – OUT (AJ020BXJ2CH, AJ024BXJ3CH)
DISPLAY1 DISPLAY2
K1 K2 K3 K4

– PCB MAIN OUT (AJ020BXS3CH, AJ*BX4CH, AJBX*5CH)
DISPLAY1 DISPLAY2
K1 K2 K3 K4

· K4 View mode Display changes

Push 1 2 3 4 5 6 7 8

Display Explanation Present Compressor Frequency Target Compressor Frequency EEV0 current step EEV1 current step EEV2 current step EEV3 current step EEV4 current step Fan RPM (H: high, L: low, Blank: off )

Push 9 10 11 12 13 14 15 16

Display Explanation Discharge temperature OLP temperature Condenser temperature Outdoor temperature Running current Target Discharge temperature Total capacity of the indoor units Safety Control (just For Service Technician)

4-10

Samsung Electronics

4-3 Setting Option

Troubleshooting

Entering mode for setting option

< ARTSFABWKN / ARBSFCMWKN >

Option setting mode

High Temp button Low Temp button

Mode button Fast button Wind-Free button

< AC*BNDCH / AJBNHDCH >

High Temp button Low Temp button

Mode button High Fan button Low Fan button

Samsung Electronics

4-11

Troubleshooting

4-3-1 Setting Option
1 Remove batteries from the remote controller 2 Insert batteries and enter the option setting mode while pressing button and button. 3 Each time you press button, 7-seg on left side is increased by “1” and each time you press button,
7-seg on right side is increased by “1” 4 You press button to move to the next setteing page. 5 After setting option, press button to check whether the option code you input is correct or not.

6 Press operation button with the direction of remote control for set.

CAUTION

· SEG1, SEG7, SEG13, SEG19 are not set as page option.
· Set the SEG1, SEG7 as ON status and SEG13, SEG19 as OFF status. – Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time.

4-3-2 The procedure of setting option

Step 1

Operation

1 Remove the batteries from the remote controller. 2 Insert batteries while pressing Button and Button.
Step 2

1 Press button to enter SEG2 value. 2 Press button to enter SEG3 value.

Step 3 Press button to be change to Cool mode in the ON status.
1 Press button to enter SEG4 value. 2 Press button to enter SEG5 value.
Step 4 Press button to be changed to DRY mode in the ON status.
1 Press button to enter SEG6. 2 Press button to enter SEG8.
Step 5 Press button to be changed to FAN mode in the ON status.
1 Press button to enter SEG9 value. 2 Press button to enter SEG10 value.

Indication

4-12

Samsung Electronics

Operation
Step 6 Press button to be changed to HEAT mode in the ON status.
1 Press button to enter SEG11 value. 2 Press button to enter SEG12value
Step 7 Press button to be changed to AUTO mode in the OFF status.
1 Press button to enter SEG14 value. 2 Press button to enter SEG15 value.
Step 8 Press button to be changed to Cool mode in the OFF status.
1 Press button to enter SEG16 value. 2 Press button to enter SEG17 value.
Step 9 Press button to be changed to DRY mode in the OFF status.
1 Press button to enter SEG18 value. 2 Press button to enter SEG20 value.
Step 10 Press button to be changed to FAN mode in OFF status
1 Press button to enter SEG21 value. 2 Press button to enter SEG22 value.
Step 11 Press button to be changed to HEAT mode in the OFF status
1 Press button to enter SEG23 value. 2 Press button to enter SEG24 value.
Step 12
Press button to check whether the option code you entered is correct or not. Press operation button to enter option.

Troubleshooting
Indication

Samsung Electronics

4-13

Troubleshooting

4-3-3 Setting an indoor unit address (MAIN/RMC)

1 Check whether power is supplied or not. – When the indoor unit is not plugged in, there should be additional power supply in the indoor unit.
2 The panel(display ) should be connected to an indoor unit to receive option.

Indoor Unit

1(L) 2(N)

F2 F1

3 Before installing the indoor unit, assign an address to the indoor unit according to the air conditioning system plan.

4 Assign an indoor unit address by wireless remote controller. – The initial setting status of indoor unit ADDRESS(MAIN/RMC) is “0A0000-100000-200000-300000” – There is no need to assign extra ADDRESS for 1:1 installation between indoor unit and outdoor unit.

Option No. : 0AXXXX-1XXXXX-2XXXXX-3XXXXX

Option

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

Explanation

Page

Mode

Setting main address

100-digit of indoor 10-digit of indoor A single digit of

unit address

unit

indoor unit

Indication Details Indication Details Indication Details Indication Details Indication Details Indication Details

Indication

and details

0

No

0

Main

address

A

Main

0~9

100digit

0~9 10-digit

0~9

A single digit

1

address setting

mode

Option

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

Explanation

Page

Setting RMC address

Group channel(*16)

Indication Details Indication Details Indication Details Indication Details Indication Details

Indication

and details

1

0

No RMC address

RMC

1

address setting

mode

RMC1 1~F

Group address Indication Details
RMC2 1~F

You must set RMC address setting mode when using the centralized Control.

CAUTION

· When “A”~”F” is entered to SEG4~6, the indoor unit MAIN ADDRESS is not changed.
· If you set the SEG 3 as 0, the indoor unit will maintain the previous MAIN ADDRESS even if you input the option value of SEG4~6.
· If you set the SEG 9 as 0, the indoor unit will maintain previous RMC ADDRESS even if you input the option value of SEG11~12.

5 The MAIN address is for commnication between the indoor unit and the outdoor unit. Therefore, you must set it to operate the air conditioner properly

4-14

Samsung Electronics

Troubleshooting

4-3-4 Setting an indoor unit installation option (suitable for the condition of each installation location)

Wall mounted

1. Make sure that the power is supplied to the indoor unit. If the indoor unit is not plugged in, it must include a power supply.
2. Make sure that the panel is connected to the indoor unit so

Indoor Unit

1(L) 2(N)

F2 F1

that it can receive options

3. Set the functional options of indoor units, by referring to

the following table and by following the steps in Common steps for setting the addresses and optionson page

4-1.

· The SEG20 option, Individual control with remotecontrol, allows you to control multiple indoor units

individually by using the remote control.

ARTSFABWKN, ARBSFCMWKN · The installation options of indoor units are set to like a below table by default.

Model

AR07/09/12/15TSFABWKN

Installation option 020010-100000-200101-300346

AR18/24TSFABWKN AR18/24BSFCMWKN
020010-100000-200101-300357

AR07/09/12/15BSFCMWKN 020010-100000-200101-300335

Option

SEG1

SEG2

Explanation

Page

Mode

Indication and Details

Indication Details Indication Details

0

2

Option

SEG7

SEG8

Explanation

Page

Use of drain pump (*1)

SEG3 Reserved
SEG9

SEG4

Use of external temperature sensor

Indication Details

0

Use

1

Disuse

SEG10

SEG5

SEG6

Use of central control

Indication Details

0

Disuse

1

Use

SEG11

Reserved SEG12

Indication Details Indication Details

Indication and Details
1

0

Disuse Reserved

External 8 drain pump
signal use

Reserved

Samsung Electronics

4-15

Troubleshooting

Option

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

Explanation

Page

Use of external control

Setting the output of external control

Buzzer control

Indication Details Indication Details Indication Details

Indication Details

Indication

and

Details

2

0

Disuse

1

ON or OFF control

0

Thermo ON

0

Reserved

Use of buzzer Reserved

2

OFF control

Window

1

3

ON or OFF

control (*2)

Operation ON

Disuse

1

of

buzzer

Option

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

Explanation

Page

Individual control with remote control (*3)

Indication Details Indication Details

Indication

and

Details

3

0

Channel1

1

Channel1

2

Channel 2

3

Channel 3

Reserved

4

Channel 4

(1) If external drain pump signal is used, external control (SEG14) can’t be used. (2) The window on/off function applies to the following unit
– AR** (*3) If you input a number other than 0~4 of the individual control of the indoor unit(SEG20), the indoor is set as
“indoor 1″.

4-16

Samsung Electronics

Troubleshooting

AC***BN1DCH · The installation options of indoor units are set to like a below table by default.

Model Installation option

AC009BN1DCH 020010-100031-200000-300000

AC012BN1DCH 020010-100051-200000-300000

Option No. for an indoor unit : 02XXXX-1XXXXX-2XXXXX-3XXXXX

Option

SEG1

Function

Page

SEG2

SEG4

SEG5

SEG6

Mode

SEG3 Use of external room temperature sensor / Minimizing fan operation when thermostat is off 1)

Use of central control

Compensation of the fan RPM

Details

Indication Details Indication Details

Indication

Use of external room temperature
sensor

0

Disuse

Indication and
details
0

1 2 3 4 5 Reserved 6

2

7

Use Disuse Use Disuse Use
Disuse
Use

8

Disuse

9

Use

A

Disuse

B

Use

Minimizing fan Indication Details Indication operation when
thermostat is off

Details

Disuse
Disuse Use(Heating) Use(Heating) Use(Cooling) Use(Cooling)
Use (Cooling/Heating)
Use (Cooling/Heating) Use (Cooling Ultra
low speed) Use (Cooling Ultra
low speed) Use (Heating/ Cooling Ultra low
speed)) Use (Heating/ Cooling Ultra low
speed)

0 Disuse 0

1

Use

1

Disuse (recessed installation
RPM compensation

Samsung Electronics

4-17

Troubleshooting

Option

SEG7

SEG8

SEG9 SEG10

SEG11

SEG12

Function

Page

Use of drain pump2)

WindFree FAN RPM 3)

Dew removal operation in WindFree mode/ WindFree mode in Auto cleaning/ Smart Comfort in Auto mode

Details

Indication Details Indication Details

Indication AC009BN1DCH

AC012BN1DCH

Dew removal Indication operation in
Wind-Free mode

WindFree mode in Auto cleaning

Smart Comfort in Auto mode

Indication and
details

0

Reserved Reserved

0 Disuse

1

Use

2 3

3STEP 2STEP 1STEP Default

5STEP 4STEP 3STEP 2STEP

0 Maintain blade Wind-Free 1 Open blade disuse Smart
2 Maintain blade Wind-Free Comfort use 3 Open blade use

1 Use with
2 3 minute delay

4

1STEP

5

2STEP

6

3STEP

7

4STEP

1STEP Default 1STEP 2STEP

4 Maintain blade Wind-Free

5 Open blade disuse Smart

6

Maintain blade Wind-Free

Comfort disuse

7 Open blade use

Option

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

Function

Page

Use of external control

Setting the output of extermal control

Buzzer control

Maximum filter usage time 4)

Indication Details Indication

Details

Indication

Details

Indication Details Indication Details

Indication

and details

2

0 Disuse

1

On/Off Sub,

2

Off

Existing control

3 Window

0

4 Disuse

5 6

On/Off Off

Main, Existing control

7 Window

8 Disuse

9

On/Off

Sub, Reverse

A

Off control

B Window C Disuse

1

D On/Off Main,

E

Off

Reverse control

F Window

Thermo on Operation On

Reserved

0 Use of buzzer 2

1000 hours

1

Disuse of buzzer

6

2000 hours

Option Function

SEG19 Page

SEG20
Individual control with remote control 5)

SEG21 Heating setting compensation 6)

SEG22

SEG23 SEG24

Indication Details Indication

Details

Indication

Details

Indication

and details

3

0 or 1

Indoor1

2

Indoor2

3

Indoor3

4

Indoor4

0

Default

Reserved

Reserved Reserved

1

3.6°F(2°C)

2

9°F(5°C)

· 1) SEG4 By SEG4 setting, Minimizing fan operation when thermostat is off. Fan operates for 20 seconds at an interval of 5 minutes in heat mode. Fan stops or operates Ultra low in Cooling when thermostat is off.
· 2) SEG8 Even if you set the Use of drain pump option to 0, it is utomatically set to 2 (the drain pump is used with 3 minute delay).
· 3) SEG11 Compensation of the WindFree fan RPM option adjusts 20 rpm per1 step.
· 4) SEG18 If you set the Maximum filter usage time option to a value other than 2 and 6, it is automatically set to 2 (1000 hours).
· 5) SEG20 If you set the Individual control with remote control option to a value otherthan 0 to 4, it is automatically set to 0 (Indoor1)
· 6) SEG21 Default value of Heating setting compensation is 9°F(5).

4-18

Samsung Electronics

Troubleshooting

AC***BNNDCH · The installation options of indoor units are set to 020010-100000-200000-300000 by default.

Option No. for an indoor unit : 02XXXX-1XXXXX-2XXXXX-3XXXXX

Option

SEG1

Function

Page

SEG2

SEG4

SEG5

Mode

SEG3

Use of external room temperature sensor /

Minimizing fan operation when thermostat is off

Central control

Indication Details Indication Details

Indication

Indication and
details
0

0 1 2 3 4 5 Reserved 6

2

7

8

9

A

B

Details

Indication

Use of external room temperature
sensor

Minimizing fan operation when thermostat is off 1)

Disuse

0

Use

Disuse

Use(Heating)

Use

Use(Heating)

Disuse

Use(Cooling)

Use

Use(Cooling)

Disuse

Use (Cooling/Heating)

Use

Use (Cooling/Heating)

Disuse

Use (Cooling Ultra

low speed)

1

Use

Use (Cooling Ultra low speed)

Disuse

Use (Cooling Ultra low speed)

Use

Use (Cooling Ultra low speed)

Details Disuse
Use

SEG6 Compensation of the
fan RPM
Indication Details

0

Disuse

1

High ceiling mode

Samsung Electronics

4-19

Troubleshooting

Option

SEG7

Function

Page

SEG8 Use of drain pump2)

SEG9 SEG10

SEG11

Wind-free fan speed 3)

Indication Details Indication Details

Indication Details

Indication and
details
1

0

Disuse

0

Reserved Reserved

1

Use

1

2

Use with 3 minute delay

3

Default 1Step 2Step 3Step

4

Option

SEG13

SEG14

Function

Page

Use of external control

Indication Details Indication

Details

SEG15 Setting the output of
extermal control Indication Details

0

Disuse

1

On/Off

Sub,

2

Off

Existing

3

Window On/Off

control 0 Thermo on

4

Disuse

Indication

and details

2

5

On/Off

Main,

6

Off

Existing

7

Window On/Off

control

8

Disuse

9

On/Off

Sub,

A

Off

Reverse

B C

Window On/Off Disuse

control

1

Operation On

D

On/Off

Main,

E

Off

Reverse

F

Window On/Off

control

4Step SEG16
Reserved

SEG12

Dew removal operation in Wind-Free mode/Wind-Free

mode in Auto cleaning/Smart Comfort in Auto mode

Details

Dew removal Indication operation in
Wind-Free mode

Wind-Free mode in Auto
cleaning

Smart Comfort in Auto mode

0 Maintain blade Wind-Free

1

Open blade

disuse

Smart

2 Maintain blade Wind-Free Comfort use

3

Open blade

use

4 Maintain blade Wind-Free

5

Open blade

disuse

Smart

Comfort

6

Maintain blade Wind-Free disuse

7

Open blade

use

SEG17

SEG18

Buzzer control

Maximum filter usage time 4)

Indication Details

0 Use of buzzer

2

1000 hours

1

Disuse of buzzer

6

2000 hours

4-20

Samsung Electronics

Troubleshooting

Option Function

SEG19 Page Indication Details

SEG20

SEG21

Individual control with Heating setting

remote control 5)

compensation 6)

Indication Details Indication Details

SEG22

SEG23

Setting the MDS Kit installation option7)

Indication

Details

SEG24

0

Disuse (Soft Off+Hard off)

0 or 1 Indoor1

0

Default

1 Standard 2

Off after 20 min. (Soft Off+Hard off)
Off after 40 min. (Soft Off+Hard off)

3

Off after 80 min. (Soft Off+Hard off)

4

Off after 20 min. (Soft Off+Hard off)

Indication

and details

3

2

Indoor2

1 3.6°F(2°C)

Premium 5

Reserved

6

Off after 40 min. (Soft Off+Hard off)
Off after 80 min. (Soft Off+Hard off)

Reserved

7

Off after 20 min. (Soft Off only)

3

Indoor3

Standard 8

Off after 40 min. (Soft Off only)

2

9°F(5°C)

9

Off after 80 min. (Soft Off only)

A

Off after 20 min. (Soft Off only)

4

Indoor4

Premium B

Off after 40 min. (Soft Off only)

C

Off after 80 min. (Soft Off only)

· 1) SEG4

By SEG4 setting, Minimizing fan operation when thermostat is off.

– Fan operates for 20 seconds at an interval of 5 minutes in heat mode.

– Fan stops or operates Ultra low in Cooling when thermostat is off.

· 2) SEG8

Even if you set the Use of drain pump option to 0, it is utomatically set to 2 (the drain pump is used with 3 minute delay).

· 3) SEG11

Compensation of the wind-free fan RPM option adjusts 20 rpm per1 step.

· 4) SEG18

If you set the Maximum filter usage time option to a value other than 2 and 6, it is automatically set to 2 (1000 hours). · 5) SEG20

If you set the Individual control with remote control option to a value otherthan 0 to 4, it is automatically set to 0 (Indoor1)

· 6) SEG21

Default value of Heating setting compensation is 9°F(5). · 7) SEG23

Soft Off: The indoor unit turns off its operation at the indicated time in the table for Installation Option after its final motion detection. But, it turns on again if the MDS detects motion.

Hard Off: Designated time after SOFT OFF, it cannot turn on automatically when it detects motion. Users should control to turn on the indoor unit with

remote control, etc.

Samsung Electronics

4-21

Troubleshooting

ACBNLDCH, AJBNHDCH · The installation options of indoor units are set to 020010-120000-200000-300000 by default.

Option No. for an indoor unit : 0AXXXX-1XXXXX-2XXXXX-3XXXXX

Option

SEG1

Explanation

PAGE

Indication and Details

Indication

Details

0

Option Explanation
Indication and Details

SEG5

Use of central control

Indication

Details

0

Disuse

1

Use

Option Explanation

SEG9

Use of Hot Coil

Indication

Details

0

Disuse

Indication and Details

1

Use

–

SEG2

MODE

Indication

Details

2

SEG6

RESERVED

SEG10

Use of auxiliary heater

Indication

Details

0

Disuse

1

Use

2

(Heater time

delay)

SEG3

RESERVED

SEG7 Indication

Details

1

SEG11

Controller variables for auxiliary heater

Details

Indication

Set temperature for auxiliary
heat on

Time delay for auxiliary heat
on

No

0

temperature No delay

offset

No

1

temperature 10 minutes

offset

No

2

temperature 20 minutes

offset

3

2.7°F(1.5°C)

No delay

4

2.7°F(1.5°C) 10 minutes

5

2.7°F(1.5°C) 20 minutes

6

5.4°F(3°C)

No delay

7

5.4°F(3°C) 10 minutes

8

5.4°F(3°C) 20 minutes

9

8.1°F(4.5°C) No delay

A

8.1°F(4.5°C) 10 minutes

B

8.1°F(4.5°C) 20 minutes

C

10.8°F(6°C)

No delay

D

10.8°F(6°C) 10 minutes

E

10.8°F(6°C) 20 minutes

SEG4

Use of external temperature sensor

Indication

Details

0

Disuse

1

Use

SEG8

Use of drain pump 1)

Indication

Details

0

Disuse

1

Use

2

Use + 3minute delay

SEG12

RESERVED

4-22

Samsung Electronics

Troubleshooting

Option

SEG13

SEG14

SEG15

SEG16

Explanation

PAGE

Use of external control

Setting the output of external control

ndication

Details

ndication

Details

ndication

Details

0

Disuse

Indication and

Details

2

Option Explanation

SEG17 Buzzer control

1

On/Off

Sub,

2

Off

Existing Control

3

Window

4

Disuse

5

On/Off

Main,

Existing

6

Off

Control

7

Window

8

Disuse

9

On/Off

Sub,

Reverse

A

Off

Control

B

Window

C

Disuse

D

On/Off

Main,

Reverse

E

Off

Control

F

Window

SEG18

Maximum filter usage time 2)

0

Thermo on

RESERVED

1

Operation on

SEG19 PAGE

SEG20
Individual control with remote control 3)

Indication

Details

Indication

Details

Indication

Details

Indication

Details

0

Use of buzzer

2

Indication and

Details

1

Disuse

6

1000 Hour 2000 Hour

0 or 1

Indoor1

2

Indoor2

3

Indoor3

4

Indoor4

Option

SEG21

SEG22

SEG23

SEG24

Explanation

Heating setting compensation4)

Away Set OFF Timer

Indication

Details

Indication

Details

0

Indication and Details

1

2

Disuse 3.6°F(2°C)
9°F(5°C)

RESERVED

0 or 1

Auto Set OFF 30Min.

2

Auto Set OFF 60Min.

3

Auto Set OFF 120Min.

4

Auto Set OFF 180Min.

·1) SEG4 By SEG4 setting, Minimizing fan operation when thermostat is off. – Fan operates for 20 seconds at an interval of 5 minutes in heat mode. – Fan stops or operates Ultra low in Cooling when thermostat is off.

· 2) SEG18 If you set the Maximum filter usage time option to a value other than 2 and 6, it is automatically set to 2 (1000 hours).
· 3) SEG20 If you set the Individual control with remote control option to a value otherthan 0 to 4, it is automatically set to 0 (Indoor1)

· 4) SEG21 Default value of Heating setting compensation is 3.6°F(2).

RESERVED

Samsung Electronics

4-23

Troubleshooting

AC***BNJDCH · The installation options of indoor units are set to 020010-100000-200000-300000 by default.

Option No. for an indoor unit : 02XXXX-1XXXXX-2XXXXX-3XXXXX

Option

SEG1

SEG2

Function

Page

Mode

Indication Details Indication Details

Indication

and

details

0

1

Option

SEG7

Function

Page

Indication Indication Details

and

details

1

SEG8 Reserved

SEG3 Reserved

SEG4

Use of external room temperature sensor / Minimizing fan operation when thermostat is off 1)

Details

Indication

Use of external room temperature
sensor

Minimizing fan operation when thermostat is off 1)

0

Disuse

1

Use

Disuse

2

Disuse

Use(Heating)

3

Use

Use(Heating)

4

Disuse

Use(Cooling)

5

Use

Use(Cooling)

6

Disuse

Use (Cooling/Heating)”

SEG5 Central control Indication Details

0

Disuse

SEG6 Reserved

7

Use

Use (Cooling/Heating)”

8

Disuse

Use (Cooling Ultra low speed)

1

Use

9

Use

Use (Cooling Ultra low speed)

A

Disuse

Use (Heating/Cooling Ultra low speed)

B

Use

Use (Heating/Cooling Ultra low speed)

SEG9

SEG10

SEG11

SEG12

Reserved

4-24

Samsung Electronics

Troubleshooting

Option

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

Function

Page

Use of external control

Setting the output of extermal control

Buzzer control

Maximum filter usage time 4)

Indication Details Indication

Details

Indication

Details

Indication Details Indication Details

0

Disuse

1

On/Off

Sub,

2

Off

Existing

control

3

Window On/Off

0

4

Disuse

Thermo on

0

Use of buzzer

2

1000 hours

Indication

and

details

2

5

On/Off Main,

6

Off

Existing

control

7

Window On/Off

8

Disuse

Reserved

9

On/Off

Sub,

A

Off

Reverse

control

B

Window On/Off

1

C

Disuse

Operation On

1

Disuse of buzzer

6

2000 hours

D

On/Off Main,

E

Off

Reverse

control

F

Window On/Off

Option

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

Function

Page

Individual control with remote control 5)

Heating setting compensation 4)

Indication Details Indication

Details

Indication

Details

Indication

and

details

3

0 or 1

Indoor1

2

Indoor2

3

Indoor3

4

Indoor4

0

Default

1

3.6°F(2°C)

2

9°F(5°C)

Reserved

· 1) SEG4 By SEG4 setting, Minimizing fan operation when thermostat is off. – Fan operates for 20 seconds at an interval of 5 minutes in heat mode. – Fan stops or operates Ultra low in Cooling when thermostat is off.
· 2) SEG18 Ifyou set the Maximum filterusage time option to avalue otherthan 2 and 6, it is automaticallyset to 2 (1000 hours).
· 3) SEG20 Ifyou set the Individual controlwith remote control option to avalue otherthan 0 to 4, it is automaticallyset to 0 (Indoor1)
· 4) SEG21 Default value of Heating setting compensation is 9°F(5°C).

Samsung Electronics

4-25

Troubleshooting

AC***BNZDCH · The installation options of indoor units are set to 020010-100000-200000-300000 by default.

Option No. for an indoor unit : 02XXXX-1XXXXX-2XXXXX-3XXXXX

Option

SEG1

SEG2

Function

Page

Mode

Indication Details Indication Details

Indication

and

details

0

2

SEG3 Reserved

SEG4

Use of external room temperature sensor / Minimizing fan operation when thermostat is off 1)

Indication

Details
Use of external room Minimizing fan operation temperature sensor when thermostat is off

0

Disuse

1

Use

Disuse

2

Disuse

Use(Heating)

3

Use

Use(Heating)

4

Disuse

Use(Cooling)

5

Use

Use(Cooling)

6

Disuse

Use (Cooling/Heating)

SEG5 Central control Indication Details

0

Disuse

7

Use

Use (Cooling/Heating)

8

Disuse

Use (Cooling Ultra low speed)

1

Use

9

Use

Use (Cooling Ultra low speed)

A

Disuse

Use (Heating/Cooling Ultra low speed)

B

Use

Use (Heating/Cooling Ultra low speed)

SEG6 Reserved

4-26

Samsung Electronics

Troubleshooting

Option

SEG7

SEG8

SEG9

Function

Page

Use of drain pump

Indication Details Indication Details

Use of Hot Coil Indication Details

Indication and details

0

Disuse

0

Disuse

Use

8

external

1

Use

drain pump

SEG10

SEG11

SEG12

Use of Hot auxiliary heater

Controller variables for auxiliary heater

Indication Details

Details

Indication

Set temperature for auxiliary
heat on

Time delay for auxiliary heat on

No

0

temperature No delay

offset

0

Disuse

1

No temperature
offset

10 minutes

2

No temperature
offset

20 minutes

3

2.7°F(1.5°C) No delay

4

2.7°F(1.5°C)

10 minutes

5

2.7°F(1.5°C)

20 minutes

6

5.4°F(3°C) No delay

1

Use

7

5.4°F(3°C)

10 minutes

8

5.4°F(3°C)

20 minutes

9

8.1°F(4.5°C) No delay

A

8.1°F(4.5°C)

10 minutes

Use

B

8.1°F(4.5°C)

20 minutes

2

(Heater time

C

10.8°F(6°C) No delay

delay)

D

10.8°F(6°C)

10 minutes

E

10.8°F(6°C)

20 minutes

Master / Slave Use of drain pump
Indication Details

0

Slave

8

Master

Samsung Electronics

4-27

Troubleshooting

Option

SEG 13

SEG 14

SEG 15

SEG 16

SEG 17

Function

Page

Use of external control

Setting the output of extermal control

Buzzer control

Indication Details Indication

Details

Indication Details

0

Disuse

1

On/Off

Sub,

2

Off

Existing

control

3

Window On/Off

4

Disuse

0

Thermo on

0

Use of buzzer

Indication

and

details

2

5

On/Off

Main,

6

Off

Existing

control

7

Window On/Off

8

Disuse

Reserved

9

On/Off

Sub,

A

Off

Reverse

control

B

Window On/Off

1

Operation On

C

Disuse

1

Disuse of buzzer

D

On/Off

Main,

E

Off

Reverse

control

F

Window On/Off

Option

SEG 19

SEG 20

SEG 21

SEG 22

SEG 23

Function

Page

Individual control with remote control 3)

Heating setting compensation 4)

Indication Details Indication Details Indication

Details

Indication

and

details

3

0,1

Indoor1

0

2

Indoor2

1

3

Indoor3

Default 3.6(2)

Reserved

4

Indoor4

2

9(5)

· 1) SEG4 By SEG4 setting, Minimizing fan operation when thermostat is off.
– Fan operates for 20 seconds at an interval of 5 minutes in heat mode. – Fan stops or operates Ultra low in Cooling when thermostat is off.

· 3) SEG20 If you set the Individual control with remote control option to a value otherthan 0 to 4, it is automatically set to 0 (Indoor1)

· 4) SEG21 Default value of Heating setting compensation is 3.6°F(2).

SEG 18
Reserved
SEG 24 Reserved

4-28

Samsung Electronics

Troubleshooting

4-3-5 Changing the addresses and option individually
When you want to change the value of a specific option, refer to the following table and follow the steps in Common steps for setting the addresses and options on page 18.

Option

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

Function

Page

Mode

Type of the option to change

Tens position of the option
number

Units position of the option
number

New value

Indication Details Indication Details Indication

Indication

and details

0

D

Option type

Details 0 to F

Indication Details Indication

Tens

Units

position 0 to 9 position

value

Details 0 to 9

Indication Details

New value

0 to F

Example: Changing the Buzzer control (SEG17) option of the installation options to 1 disuse.

Option Function Indication

SEG1 Page
0

SEG2 Mode
D

SEG3
Type of the option to change
2

SEG4
Tens position of the option
number
1

SEG5
Units position of the option
number
7

SEG6 New value
1

CAUTION

· If your indoor units support both cooling and heating, the mixed operation (two or more indoor units operate in different modes simultaneously) is not available when the indoor units are connected to the same outdoor unit. If you set an indoor unit as the master indoor unit by using the remote control, the outdoor unit automatically operate in the current mode of the master indoor unit.

Samsung Electronics

4-29

Troubleshooting

4-3-6 Changing a particular option

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72

AR07TSFABWKNCV 011A25 17C0E7 271416 37140D 020010 100000 200101 300346 034039 10222C 200000 300001

AR09TSFABWKNCV 011A25 17C0E7 271A20 37140D 020010 100000 200101 300346 034039 10222C 200000 300001

Wall Mounted

AR12TSFABWKNCV AR15TSFABWKNCV

011A25

17C217

17C227

272323

272C38

37140D

020010

100000

200101

300346

03463A

103131

200000

300001

AR18TSFABWKNCV 011A25 16C23B 27353C 37140D 020010 100000 200101 300357 03413F 11262C 200000 300001

AR24TSFABWKNCV 011A25 15C29D 273E51 37160D 020010 100000 200101 300357 033E47 112D38 200000 300001

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72

AR07BSFCMWKN 011A25 1740DA 271416 37280D 020010 100000 200101 300335 034140 10252F 200000 300001

AR09BSFCMWKN 011A25 17C0EA 271A20 37280D 020010 100000 200101 300335 034140 10252F 200000 300001

Wall Mounted

AR12BSFCMWKN AR15BSFCMWKN

011A25

17C0FA

17422A

272323

272C38

37280D

37180D

020010

100000

200101

300335

034842

034140

103533

10252F

200000

300001

AR18BSFCMWKN 011A25 15C21B 27353E 37240D 020010 100000 200101 300357 034D4B 10464D 200000 300001

AR24BSFCMWKN 011A25 15C24B 274046 37140D 20010 100000 200101 300357 03484D 113535 200000 300001

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72

Wind-Free Slim 1Way Cassette

AC009BN1DCH

AC012BN1DCH

0173FC

1930F8

19344D

271A23

272328

371120

020010

100031

100051

200000

300000

030000

100000

200000

300002

4-30

Samsung Electronics

Troubleshooting

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72

AC009BNNDCH 0153FF 1910C8 271A23 370040 020010 100001 200000 300000 030000 100000 200000 300002

Wind-Free Mini 4Way Cassette AC012BNNDCH 0153FF 1930F9 272328 370000 020010 100001 200000 300000 030000 100000 200000 300002

AC018BNNDCH 0153FF 19345D 25343B 370000 020010 100001 200000 300000 030000 100000 200000 300002

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72 0.3P1.5 mmAq 1.5P2.6 mmAq 2.6P4.0 mmAq 4.0P5.0 mmAq 5.0P6.0 mmAq

AC009BNLDCH 01C3FC 1C546B 271A23 370000 020010 120000 200000 300000 030000 100000 200000 300002
01C3FC-1C5407-271A23-370000 01C3FC-1C546B-271A23-370000 01C3FC- 1C55C0-271A23-370000 01C3FC-1C5903-271A23-370000 01C3FC-1C5945-271A23-370000

Home Duct AC012BNLDCH
01C3FC 1C55F0 272328 370000 020010 120000 200000 300000 030000 100000 200000 300002 01C3FC-1C54BC-272328-370000 01C3FC-1C55F0-272328-370000 01C3FC- 1C5944-272328-370000 01C3FC-1C5986-272328-370000 01C3FC-1C59B9-272328-370000

AC018BNLDCH 01C3FC 1C583D 23343C 370000 020010 120000 200000 300000 030000 100000 200000 300002
01C3FC-1C54FB-23343C-370000 01C3FC-1C583D-23343C-370000 01C3FC- 1C5980-23343C-370000 01C3FC-1C59B2-23343C-370000 01C3FC-1C59F5-23343C-370000

Samsung Electronics

4-31

Troubleshooting

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72
2.5P5.0 mmAq
5.0P7.5 mmAq
7.5P10.0 mmAq
10.0P12.5 mmAq
12.5P15.0 mmAq

AJ009BNHDCH 01B3FC 1C50D3 271A23 370000 020010 120000 200000 300000 030000 100000 200000 300002
01B3FC-1C50D3271A23-370000 01B3FC-1C5466271A23-370000 01B3FC- 1C54D9271A23-370000 01B3FC-1C582C271A23-370000 01B3FC-1C5970271A23-370000

Duct S

AJ012BNHDCH

AJ015BNHDCH

01B3FC

1C5404

1C5435

272328

272C34

370000

020010

120000

200000

300000

030000

100000

200000

300002

01B3FC-1C5404272328-370000

01B3FC-1C5435272C34-370000

01B3FC-1C5477272328-370000

01B3FC-1C5488272C34-370000

01B3FC-1C54EA272328-370000

01B3FC-1C54FB272C34-370000

01B3FC-1C583D272328-370000

01B3FC-1C584E272C34-370000

01B3FC-1C5981272328-370000

01B3FC-1C5992272C34-370000

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72

AC009BNJDCH 0193FF 1930B6 271A23 370400 020010 100000 200000 300000 030000 100000 200000 300002

AC012BNJDCH 0193FF 1930D8 272328 370500 020010 100000 200000 300000 030000 100000 200000 300002

Console

AC015BNJDCH 0193FF 1920FB 272C34 370408 020010 100000 200000 300000 030000 100000 200000 300002

AJ018BNHDCH 01B3FC 1C5456 27343C 370000 020010 120000 200000 300000 030000 100000 200000 300002
01B3FC-1C545627343C-370000 01B3FC-1C549927343C-370000 01B3FC- 1C580C27343C-370000 01B3FC-1C585F27343C-370000 01B3FC-1C59A327343C-370000
AC018BNJDCH 0193FF 19240A 20343A 370408 020010 100000 200000 300000 030000 100000 200000 300002

4-32

Samsung Electronics

Option Code
SEG1~6 SEG7~12 SEG13~18 SEG19~24 SEG25~30 SEG31~36 SEG37~42 SEG43~48 SEG49~54 SEG55~60 SEG61~66 SEG67~72

AC012BNZDCH 01E2FC 105020 272328 370000 020010 100000 200000 300000 030000 100000 200000 300002

MPAH AC018BNZDCH
01E2FC 105020 2F343C 370000 020010 100000 200000 300000 030000 100000 200000 300002

Troubleshooting
AC024BNZDCH 01E2FC 105020 27484F 370000 020010 100000 200000 300000 030000 100000 200000 300002

Samsung Electronics

4-33

Troubleshooting

4-4 Items to be checked first

1. The input voltage should be rating voltage ±10% range. The air conditioner may not operate properly if the voltage is out of this range.

2. Is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 4 cables. Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables. Otherwise the air conditioner may not operate properly.

3. When a problem occurs due to the contents illustrated in the table below it is a symptom not related to the malfunction of the air conditioner.

No

Operation of air conditioner

Explanation

In a COOL operation mode, the compressor does not

operate at a room temperature higher than the setting

1

temperature that the INDOOR FAN should operate. In a HEAT operation mode, the compressor does not

operate at a room temperature lower than the setting

temperature that indoor fan should operate.

In happens after a delay of 3 minutes when the compressor is reoperated. The same phenomenon occurs when a power is on. As a phenomenon that the compressor is reoperated after a delay of 3 minutes, the indoor fan is adjusted automatically with reference to a temperature of the air blew

2

Fan speed setting is not allowed in AUTO( ) or DRY( ) mode.

3

Compressor stops operation intermittently in DRY( ) mode.

The speed of the indoor fan is set to LL in DRY mode. Fan speed is 5 steps and is selected automatically in AUTO mode.
Compressor operation is controlled automatically in DRY mode depending on the room temperature and humidity.

4

Compressor of the outdoor unit is operating although it is turned off in a HEAT mode.

5

Timer LED( ) only of the indoor unit lights up and the air conditioner does not operate.

6

The compressor and indoor fan stop intermittently in HEAT mode.

7

Indoor fan and outdoor fan stop operation intermittently in a HEAT mode.

When the unit is turned off while de-ice is activated, the compressor continues operation for up to 12 minutes (maximum) until the deice is completed.
Timer is being activated and the unit is in ready mode. The unit operates normally if the timer operation is cancelled.
The compressor and indoor fan stop intermittently if room temperature exceeds a setting temperature in order to protect the compressor from overheated air in a HEAT mode.
The compressor operates in a reverse cycle to remove exterior ice in a HEAT mode, and indoor fan and outdoor fan do not operate intermittently for within 20% of the total heater operation.

The compressor stops intermittently in a 8 COOL mode or DRY mode, and fan speed of the
indoor unit decreases.

The compressor stops intermittently or the fan speed of the indoor unit decreases to prevent inside/outside air frozen depending on the inside/outside air temperature.

4-34

Samsung Electronics

4-34

Troubleshooting

If Error code is displayed on indoor or outdoor LED, check as follows;

Q1 Step 1

Contents

Turn on the system. But outdoor units PCB displayed E201 or E101 Error code. Check point Remarks

Check point

Remarks

Check to power cable to indoor units. Check to communication cable indoor units.

Wire connect

Q2
Guidance Step 1

Contents

Turn on the system. But outdoor units PCB displayed E203 Error code.

Check point

Remarks

Outdoor communication error between the outdoor main PCB and sub PCB.

Outdoor PCB SW01

Check to sub PCB wire and replace it.

Wire connect

Q3 Error code
E121 E122 E123 E154
Guidance

Contents Turn on the indoor units. But indoor unit displayed E121/122/123/154 Error code.
Explanation Indoor unit room temperature sensor error (open/short) Indoor unit heat exchanger in temperature sensor error (open/short) Indoor unit heat exchanger out temperature sensor error (open/short) Indoor unite fan error Please, all units turn off and check to indoor unit’s PCB and wire connection. E121/122/123 error detected, replace related sensor.

Q4 Error code
E162 E163
Guidance

Contents Turn on the system. But indoor unit displayed E162/163 Error code.
Explanation Indoor unit EEPROM Error. Indoor unit EEPROM Option Error. Please, all units turn off and follow guidance. E163 : Please reset indoor Option code. E163 : If you don’t know about that, replace indoor unit PCB which is related. E162 : Please replace indoor unit PCB which is related.

Q5 Error code
E221 E237 E251 E320 Guidance

Contents Turn on the system. But outdoor unit displayed E221/237/251/320 Error code.
Explanation Outside temperature sensor error (open/short) Condenser temperature sensor error (open/short) Compressor Discharge temperature sensor error (open/short) Compressor OLP sensor error (open/short) Please, The System turn off and replace sensor which is related.

Q6
Analysis Step 1 Step 2 Step 3
Guidance

Contents

When the pipe checking operation is finished, outdoor sub PCB display E190 Error code.

Check point

Remarks

Outdoor unit fails to search indoor units or to check indoor address.

The pipe checking operation

Whether The gas and liquid pipes are crossed with each other, check to connecting.

Pipe connecting

Check to indoor unit’s sensor being connected in proper location.

EEV Coil

Check to indoor unit’s sensor being connected in proper location.

Indoor sensor

During the pipe checking operation , system check temperature change of indoor Heat exchanger.

In case, indoor sensor defect, EEV coil connector detach, malfunction of EEV, Leakage of Refrigerant,

and etc can make this case.

4-35

Troubleshooting

– Address setting another case

Q1
Analysis Step 1 Step 2
Guidance

Contents

When the system installation is finished, outdoor unit’s PCB display E202 Error code.

Check point

Remarks

This problem is caused by outdoor unit’s communica-

tion part trouble or indoor units power and communica- The pipe checking operation

tion line trouble.

Check to connect outdoor unit and indoor units cable. Pipe connecting

Replace outdoor unit’s ass’y control or indoor unit’s ass’y control.

EEV Coil

Basically, This error caused by communication between Indoor Units and Outdoor Unit.

First of all, check the all communication connection and PCB’s status.

4-36

Troubleshooting

– Operation Error

Q1 Analysis Guidance

Contents

While using cooling or heating, indoor units display E161 Error code.

Check point

Remarks

This problem is caused by user’s fault. User’s simultaneously operate 2 more indoor units in the same time cool-

ing and heating mode.

FJM is operate by just cooling or heating mode only. (Only, HR system can operate cooling and heating mode

simultaneously in the same time)

Outdoor unit will be operate by first received signal, another operation signal is not applied system.

Q2
Analysis Step 1 Step 2 Step 3

Contents

While using cooling or heating, System turn off and display E416 Error code.

Check point

Remarks

E416 is outdoor unit high discharge temperature safety control Error code.

After System restart automatically until 3 times, system stop and display this error.

System can be operated by remote controller signal and K3(reset) key input.

Check outdoor units installation environment.

(air flow blocking, the halation of another outdoor air flow)

Check refrigerant leakage.

Check outdoor EEV operation.

Q3
Analysis Step 1

Contents

While using cooling or heating, System Turn off and display E458 Error code.

Check point

Remarks

E458 Error is related with outdoor unit fan Error.

Especially, If system have a some problem in fan, in heating mode , it will be happened.

And In auto address setting, without pipe checking operation must be happened it.

Check to outdoor fan operation.

Step 2 If outdoor fan operation is clear, start to pipe checking operation.

Guidance

When Auto address setting is finished without pipe checking operation, in heating mode, outdoor unit refrigerant distribution control is malfunction. It make our system to confuse it’s condition. But, basically this error code is concerned about fan error.

Q4
Analysis Step 1 Step 2

Contents

While using cooling mode, outdoor unit turn off and display E401 Error code.

Check point

Remarks

This is caused by protection mode behavior.

This is indoor Evaporator Freezing protection mode.

It can also occur intermittently when using 1 or 2 indoor units for cooling at low indoor and outdoor temperatures.

Please, check indoor unit, whether inlet or outlet grill is closed.

Please, check indoor unit, whether indoor fan is working.

Q5 Analysis

Contents

When system start in cooling mode, System don’t operate and display E441 Error code.

Check point

Remarks

The product is out of the range of cooling operation.

Please, Remember cooling operation range.

4-37

Troubleshooting

Q6
Analysis Step 1 Step 2

Contents

While using heating, outdoor unit turn off and display E404 Error code.

Check point

Remarks

Heating overload safety mode make this situation.

After System restart automatically until 3 times, System display this error code and stop.

System can operate by remote controller input signal or K3(reset) key input.

Check indoor units air flow.

Check outdoor unit air flow and installation (outdoor air flow blocking & over charging)

Q7 Analysis

Contents

When system start in Heating mode, System don’t operate and display E440 Error code.

Check point

Remarks

The product is out of the range of heating operation.

But we admit that Maximum Heating temperature is up to 24°C Please, Remember Heating operation range.

– Try-run Check Error

Q1 Analysis

Contents

While the system is working try-run mode, system turn off and display

E128 / 129 / 246 / 261 / 419 / 422 / 554 Error code.

Check point

Remarks

These Error codes only apply with Try-run mode, in case of system have some defect as result of

try-run operation.

Refer to self-detection algorithm (Check Error Code meaning and check it out)

4-38

Troubleshooting
4-5 Setting to Cool or Heat only mode, checking and Cool/Heat modes operation test
Setting the outdoor option · Press and hold K2 to enter the option setting. (Only available when the operation is stopped)
– If you enter the option setting, display will show the following.

– Seg 1 and Seg 2 will display the number for selected option. – Seg 3 and Seg 4 will display the number for set value of the selected option.

CAUTION

· Edited option will not be saved if you do not end the option setting as explained in above instruction.
While you are setting the option, you may press and hold the K1 button to reset the value to previous setting. If you want to restore the setting to factory default, press and hold the K4 button while you are in the option
setting mode. If you press and hold the K4 button, setting will be restored to factory default but it doesn’t mean that restored
setting is saved. Press and hold the K2 button. When the segments shows that tracking mode is in progress, setting will be saved.

· If you have selected desired option, you can shortly press the K1 switch to adjust the value of the Seg 1, Seg 2 and change the function for the selected option.
Example)

· If you have selected desired option, you can shortly press the K2 switch to adjust the value of the Seg 3, Seg 4 and change the function for the selected option.
Example)

· After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will be saved when entire segments blinks and tracking mode begins.

Option item

Input unit

Setting to Cool or Heat only mode

Main

Unused option
Mixed mode indoor input
Auto Change Over

Main Main Main

Channel address

Main

SEG1 0 0 0 0 0

SEG2 0 1 2 3 4

SEG3
0 0 0 0 0 0 0 0 0
A

SEG4
0 1 2 0 1 0 1 0 1
U

00 ~ 15

Function
Cooling and Heating (Factory default)” Only Cooling Only Heating Unused option Unused option
Disabled (Factory default) Enabled
Disabled (Factory default) Enabled (Factory default)
Automatic setting (Factory default)
Manual setting

CAUTION

· Edited option will not be saved if you do not end the option setting as explained in above instruction.
While you are setting the option, you may press and hold the K1 button to reset the value to previous setting. If you want to restore the setting to factory default, press and hold the K4 button while you are in the option
setting mode.
– If you press and hold the K4 button, setting will be restored to factory default but it doesn’t mean that restored setting is saved. Press and hold the K2 button. When the segments shows that tracking mode is in progress, setting will be saved.

4-39

Troubleshooting

Cool and Heat modes operation Test
After installing the outdoor and indoor units, test the Cool and Heat modes. · When you test the Cool mode, set the set temperature of the indoor unit to the lowest one. And when you test the Heat mode, set the set temperature of the indoor unit to the highest one. · Check if each indoor unit operates normally and then also check if all indoor units operate normally together. – Check both of the Cool and Heat modes. · About 20 minutes after the air conditioner is started, check the temperature difference between the air inlet and outlet of the indoor unit. If the temperature difference is larger than the value given in the following table, the operation is normal.

Mode

Temperature

Cool

Approximately 14.4 (-10 )

Heat

Approximately 21.6 (-6 )

· If the outdoor unit is turned off and then immediately turned on again, the compressor does not operate for about 3 minutes.
CAUTION
· During the Cool mode, frost may temporarily develop on valves and other parts.

NOTE

· You can also test the Cool or Heat Try run using K1 button.
– Cool mode try-run: Push the [K1] button twice. – Heat mode try-run: Push the [K1] button three times. – Auto mode try-run: Push the [K1] button six times. Automatically select mode according to outdoor temperature.

Optional : Setting to Cool or Heat only mode
This function enables the indoor units connected to the outdoor unit to operate in a specific mode. You can set each mode with Keys on the Main PCB in the outdoor unit.

Set mode

SEG1

SEG2

Cooling and Heating

Only Cooling

0

Only Heating

· Default value: Cooling and Heating mode

SEG3 0 0 0

SEG4 0 1 2

4-40

Samsung Electronics

Troubleshooting

4-6 Fault Diagnosis by Symptom

4-6-1 Indoor 4-6-1-1 Indoor temperature sensor (open/short)

4Way Indoor unit display 1Way
Console Symptom
Failure

(Operation) X (Defrost) (Timer) X (Filter)

(Operation) X (Timer)

(Fan) X (Filter)

(Operation) X (Defrost) X (Timer) (Fan) X (Filter)

In case of open or short circuit of indoor temperature sensor

Short or leakage of the corresponding sensor

Is indoor temperature sensor disconnected from the connector
in PCB? No
Remove the indoor temperature sensor connector from the PCB and measure the
resistance between two terminals
In this case, is the resistance value out of range in the temperature
table on the right? No
Restart the system after replacing the PCB

Yes
Restart the system after connecting to the PCB connector

Yes
Indoor temperature sensor failure (replace)

Current temperature
(°C)
40

Resistance (k)
5.800

35

6.900

30

8.300

25

10.00

20

12.10

15

14.70

10

18.00

5

22.00

0

28.30

-5

33.90

-10

42.30

Samsung Electronics

4-41

Troubleshooting

4-6-1-2 Indoor FAN ERROR (BLDC MOTOR MODEL)

4Way Indoor unit display 1Way
Console Symptom
Failure

X (Operation) X (Defrost) (Timer) X (Filter) X (Operation) X (Timer) (Fan) X (Filter) X (Operation) X (Defrost) X (Timer) (Fan) X (Filter) Indoor unit fan dose not run/Runs at excessive high speed and stops. Check if the motor connector is disconnected/check the motor fan assembly status.

Is the motor connector disconnected from the PCB?
No

Yes
Connect the connector to PCB and restart the unit.

Is there foreign substance stuck in the motor fan?
No
Replace the PCB and restart the unit.

Yes
Remove the foreign substance and restart the unit.

4-42

Samsung Electronics

Troubleshooting

4-6-1-3 Communication error after finishing Tracking

4Way Indoor unit display 1Way
Console Symptom
Failure

X (Operation) (Defrost) (Timer) X (Filter)

X (Operation) (Timer)

(Fan) X (Filter)

X (Operation) X (Defrost) (Timer) (Fan) X (Filter)

Communication error between the indoor and outdoor unit for two minutes

Communication error between the indoor unit and outdoor unit

Is there a response from the indoor PCB? (LED01 (RED) is not ON)

No

Check the communication cable and

replace the indoor unit PCB

Yes

LED01

Remove the communication cable connecting the outdoor unit to indoor unit,
and measure the signal on LINE 2 of the outdoor unit with a scope

In this case, is the voltage waveform between the lines square wave with amplitude over ±0.7V as shown
in the following picture? Yes
Reconnect the cable connecting the outdoor unit to the indoor unit
and restart the unit. If the communication still doesn’t work,
replace the indoor unit PCB.
Good
+0.7V
-0.7V
Samsung Electronics

No Check the communication
cable in the outdoor unit PCB and replace the PCB
Bad
4-43

Troubleshooting

4-6-1-4 Indoor FAN ERROR (BLDC MOTOR MODEL)

4Way Indoor unit display 1Way
Console Symptom
Failure

(Operation) (Defrost) (Timer) (Filter)

(Operation) (Timer)

(Fan)

(Filter)

(Operation) (Defrost) (Timer) (Fan)

(Filter)

EEPROM circuit failure.

EEPROM component failure, EEPROM circuit parts missing/damaged/soldering failure.

Are the EEPROM circuit components in good conditions? (missing components / damage /
soldering failure)
No

Yes Replace the PCB if the restart fails

Restart the unit after replacing the PCB

4-44

Samsung Electronics

4-6-2 Outdoor unit is not powered on Initial diagnosis
1. Check items

Is the power supply voltage 220V? 2) Is the AC power connected correctly?
Are the LEDs in the main PCB and inverter PCB of the outdoor unit ON? 4) Is the input power voltage of the indoor unit 220V? 5) Is the wired remote controller connected correctly?
2. Check procedure
Turn off the main power switch (circuit break of power outlet) and turn on again after 30 seconds.

Troubleshooting

Is the outdoor unit power supply (L-N) 220V?
Yes
Is the outdoor unit power voltage (L-N) 220V?
Yes Is the voltage between the terminal 2 (~) and 4 (~) of the
bridge diode 220V? Yes
Is the fuse connected?
Yes
Is the resistance value of R001 200?
Yes
Is the reactor connector connected correctly?
Yes Replace the PBA.
Samsung Electronics

No

Check the input power

No

Check the connection of the terminal block

No

Replace the inverter PBA

No

Replace the fuse

No

Replace the inverter PBA

No

Connect the reactor.

4-45

Troubleshooting

4-6-3 Checking Outdoor Controller

1. Making sure the wire connections.

2. Checking AC(220~240V) line Caution! When you remove PBA, you have to check DC link Voltage. After Power off, DC link Voltage is so high!

3. Checking DC voltage on each point

AJ020BXJ2CH, AJ024BXJ3CH (INVERTER PBA)

Item

Measuring point

Nomal value

DC LINK

CE151 Voltage AC220V 305~310Vdc

Main control15V CE161 Voltage

14.5V – 15.5V

Main control12V CE175 Voltage

10.8V – 13.2V

Main control 5V CE174 Voltage

4.75V – 5.25V

AJ020BXS3CH, AJ*BX4CH, AJBX*5CH (MAIN PCB)

Item

Measuring point

Nomal value

12V

CE101Voltage

10.8V – 13.2V

5V

CE105 Voltage

4.75V – 5.25V

AJ020BXS3CH, AJ*BX4CH, AJBX*5CH (INVERTER PCB)

Item

Measuring point

Nomal value

DC LINK

CE151 Voltage AC220V 305~310Vdc

Main control15V CE158 Voltage

14.5V – 15.5V

Main control 12V CE157 Voltage

10.8V – 13.2V

Main control 5V CE159 Voltage 4.75V – 5.25V

4. Checking PFCM Check Resistance between R and S
AJ020BXJ2CH, AJ024BXJ3CH

AJ020BXS3CH, AJ*BX4CH, AJBX*5CH (INVERTER PBA)

PFCM RS

RS

Resistance

Measuring point R – S

Normal value over the hundreds

4-46

Samsung Electronics

Troubleshooting

4-6-4 Outdoor unit fan error
1. Check items

Are the input voltage and power connection correct? 2) Is the motor connecting wire connected to the outdoor unit PCB correctly? 3) Are the indoor/outdoor fuses connected? 4) Are there any obstacles near the motor or propeller? 5) Is the motor driver out of order? 6) AJ020BXJ2CH, AJ024BXJ3CH Model check CNP901, AJ020BXS3CH, AJ*BX4CH, AJBX*5CH Model check
CN901.

2. Check procedure Turn off the power and restart the unit.

1 pin

DC 310V

2 pin

–

3 pin

Ground

6

4 pin

DC 15V

5 pin

VSP(0~5V)

6 pin VG (Feed Back pulse)

1

Is the fan(CNP901 or CN901) connected correctly?

No

Check the outdoor unit power supply error.

Yes

Is the resistance

between pin1 and pin3 of the fan

No

(CNP901 or CN901) over 1M.

Yes

Is the voltage between pin4 and pin3 of the fan

No

(CNP901 or CN901) over 15V?

Yes

Is the voltage between pin5 and pin3 of the fan (CNP901 or CN901)

No

during the operation 1V~6V?

Yes

Replace the inverter PCB. Replace the inverter PCB. Replace the fan motor.

No Is the fan running the operation mode?

Replace inverter PCB.

Yes

Does the voltage

between pin6 and pin3 of the fan (CNP901 or CN901)

No

fluctuate? (High 5V~6V, Low:0V~1V)

Yes Replace the inverter PCB.

Samsung Electronics

Replace the fan motor. 4-47

Troubleshooting
4-6-5 Compressor startup error, Compressor lock error, Compressor rotation error
1. Check items 1) Are the power supply and compressor connecting wires connected correctly? 2) Is the inter-phase resistance of the compressor normal?
2. Check procedure
Turn off the power and restart the unit.

Is there an error?
Yes Is the resistance valve between the phases (UV,VW,WU) below normal valve?
Yes Is the resistance value between the compressor boday and the chassis in the range of Mega.
Yes Is the compressor connection wire connected to the compressor correctly?
Yes Replace the outdoor unit Main PCB.

No

Service end.

No

Replace the compressor.

Checking Comp Resistance (Normal Value)

U-V

V-W

W-U

AJ020BXJ2CH AJ024BXJ3CH

0.70~0.80

AJ020BXS3CH AJ*BX4CH 0.60~0.70 0.60~0.70 0.60~0.70 AJBX*5CH

No

Replace the compressor.

No

Check the connection wire.

4-48

Samsung Electronics

4-6-6 IPM Over current error
1. Check items 1) Is the cool ant changed? 2) Is the compressor running normally? 3) Is the compressor connected correctly? 4) Are there any obstacles near the indoor and outdoor units?
2. Check procedure

Is the ourdoor unit unstalled correctly?

No

Yes

Is the resistance between pin1 and pin3 of the fan

No

(CN901) over 1.

Yes

Is the voltage between pin4 and pin3 of the fan (CN901)

No

over 15V?

Yes

Is the voltage between pin5 and pin3 of the fan (CN901) during

No

the operation 1V~6V?

Yes

No Is the fan running the operation mode?

Yes

Is the resistance value between the compressor boday and the chassis

No

in the range of Mega.

Yes

Are the temperature sensor location and the measured

No

value normal?

Yes

Does the voltage between pin6 and pin3 of the fan (CN901) fluctuate?

No

(High 5V~6V, Low:0V~1V)

Yes Replace the inverter PCB.

Samsung Electronics

Troubleshooting

Remove the obstacles and install the unit again.
Remove the obstacles and install the unit again.
Open the valve.

Check the compressor connection status.

Replace the compressor.

Checking Comp Resistance (Normal Value)

U-V

V-W

W-U

AJ020BXJ2CH AJ024BXJ3CH

0.70~0.80

AJ020BXS3CH AJ*BX4CH 0.60~0.70 0.60~0.70 0.60~0.70 AJBX*5CH

Replace the compressor.

Trun off the power and reconnect the table.
Trun off the power and correct or replace the temperature sensor location.

4-49

Troubleshooting

4-6-7 Checking Temperature sensor
4-6-7-1 Checking Compressor OLP and Discharge temperature sensor 1. Check items

Is the sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull-up correct?
2. Check procedure

Is the sensor connector connected correctly in accordance with
a color?
Yes
Is the sensor resistance value 200kohm±3% at the room temperature
of 25°C?
Yes
Connect the sensor to PBA connector supply power and measure the voltage of
sensor in the connector.

No

Reconnect the sensor connector.

No

Sensor Replace

Sensor resistance value : 20°C – 242kohm

30°C – 166kohm

35°C – 138kohm

40°C – 115kohm

Below 0.5V or Over 4.5V?
No Micom error or connector check.
Yes Exchange the Outdoor PBA.

Yes

Exchange the Outdoor PBA.

4-50

Samsung Electronics

Troubleshooting

4-6-7-2 Checking Pipe in/out and Cond and Ambient temperature sensor 1. Check items

Is the sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull-up correct?
2. Check procedure

Is the sensor connector connected correctly in
accordance with a color?
Yes
Is the sensor resistance value 10kohm±3% at the room
temperature of 25°C?
Yes
Connect the sensor to PBA connector supply power and measure the voltage
of sensor in the connector.

No

Reconnect the sensor connector.

No

Sensor Replace

Sensor resistance value : 20°C – 12.09kohm

30°C – 8.31kohm

35°C – 6.94kohm

40°C – 5.83kohm

Below 0.5V or Over 4.5V?
No Micom error or connector check.
Yes Exchange the Outdoor PBA.

Yes

Exchange the Outdoor PBA.

Samsung Electronics

4-51

Troubleshooting

4-7 PCB Inspection

4-7-1 Cautions for Part Replacement

1. The human body carries much static electricity. Before touching a part for repair, replacement or the similar purpose, be sure to touch a grounded metallic portion by hand to let the static electricity go through the metallic portion to the earth. Especially when handling any micro computer or IC, carefully remove such static electricity before touching them.
2. When repairing any part on a work bench, be sure to place an insulative sheet on the bench and always keep the sheet surface neat without any metal fragments. If any such fragment touches a part, a secondary trouble will possibly be caused in the part.

6. When soldering any part, care should be exercised not to apply any high- wattage soldering iron to the part for a long time. Some parts are of so low a heat resistance that they may be broken or have the properties changed if a soldering iron is so applied (Otherwise, the pattern may possibly be separated and raised).
7. The heat of the soldering iron should be transferred to the entire object to be soldered. If the solder pieces are not well fused due to insufficient transfer of the heat from the soldering iron, no satisfactory electrical continuity can be assured even if the soldered objects appear well connected to each other.

3. Before replacing any parts, be sure to turn off the power supply. If such replacement is done with the power supply kept on, an electric shock, short circuit or destruction of a part may result.
4. During replacement or repair of a part, carefully handle it : The printed circuit board has fine lead wires (jumper wires) and glass-made parts (diode) on its substrate. So if a circuit board is roughly handled, such lead wires and parts will be easily broken or damaged by bending orshock.
5. When soldering the lead wires of any new part, be sure to polish them using an emery paper or the like before soldering them. Since the lead wires of any new part are covered with an oxide film, solder cannot adhere to the lead wires if not polished.

8. The solder used should be limited to a minimum. If excessive solder is used, it will cause inter-pattern contact, which may cause malfunction of the circuit.
9. Although some part of the PCB surface are coated with coating material for protection from dust and dirt, soldering is also available to the coating part. Because this coating is thin and is weak for soldering heat. But coating material remaining on the solder part should be cleaned up before soldering a new component to prevent the solder part from becoming bad conduction.
10. After replacing a faulty PCB by a new one, the same address setting must be applied to the new PCB. (refer to the page 4-19 ~ page 4-24)

4-7-2 Procedure
The parts should be replaced in the following procedure. The repair is completed.
Check the operation of the new part. Replace it with a new part. Detach the faulty part. Check for any faulty part. Set an address.
4-52

Samsung Electronics

5. PCB Diagram
5-1 Indoor unit
Slim 1 Way, Mini 4Way
This Document can not be used without Samsung’s authorization.

PCB Diagram

Samsung Electronics

5-1

PCB Diagram

1. CN101 – AC POWER INPUT #1 : L POWER #2 : N POWER

2. CN101-EARTH #1 : EARTH

5. CN801 – SPI

1~2 : GND #3 : SPI CONTROL

SIGNAL #4 : NOT USED

6. CN412 – TEMPERATURE SENSOR

1 : INDOOR TEMP #2: GND

8. CN81 – ERROR/ COMP CHECK

1 : DC 12V #2 : ERROR CHECK #3 : DC 12V #4 : COMP CHECK

12. CN806-LOUVER3/4

1 : DC12V #2~#5 : LOUVER #6 : DC12V #7~#10 : LOUVER

9. CN808 – EEV(DVM)

1: WATER VALVE1 #2: WATER VALVE2 #3: NC #4: NC #5~#6: DC12V

13. CN83-EXTERNAL CONTROL

1 : GND #2 : EXTERNAL CONTROL

INPUT SIGNAL

16. CN201-EEPROM #1 : GND #3 : DC5V #4 : EEPROM_SELECT #5 : EEPROM_SO #6 : EEPROM_SI #7 : EEPROM_CLK
20. CN804-VENTILATOR #1 : DC12V #2 : VENT SIGNAL
OUTPUT(GND)

17. CN411-FLOAT SWITCH #1 : FLOAT SWITCH SIGNAL #2 : GND
21. CN311-2 WIRED SUB

24. TE04-COMMUNICATION

1 : COM1(F1) #2 : COM1(F2) #3 : V1(DC12V) #4 : V2(GND) #5 : COM2(F3) #6 :

COM2(F4)

25. CN110-AC POWER #1 : L- LIVE POWER INPUT

3. CN701-BLDC MOTOR #1: DC310V #3 : GND #4 : DC15V #5 : FAN RPM #6 : RPM FEEDBACK
7. CN501 – DISPLAY

1 : DC12V #2 : LED_0 #3 : LED_1 #4 : LED_2 #5 : LED_3 #6 : LED_4

10. CN807-LOUVER5

1 : DC12V #2~#5 : LOUVER SIGNAL

4. CN809-AUTO GRILLE #1 : DC12V #4 : REMOCON OUT #5 : GND

7 : LED_5 #8 : REMOCON OUT #9 : AUTO SWITCH #10 : REMOCON IN #11 : GND #12 :

DC5V #13 : GND
11. CN301-DOWNLOAD

14. CN414-HUMIDITY SENSOR #1 : DC5V #2 : GND #3 : THERMISTOR SENSOR #4 : HUMIDITY SENSOR
18. CN805-LOUVER1/2 #1 : DC12V #2~#5 : LOUVER SIGNAL

15. CN413-THERMISTOR

1 : EVA-IN SENSOR #2 : GND #3 : EVA-OUT SENSOR #4 : GND #5 : DISCHARGE SENSOR

6 : GND

19. CN103-DRAIN PUMP #1 : DRAIN PUMP (DC12V) #2 : GND

22. CN401-HUMAN SENSOR #1 : DC12V #2 : TXD #3 : RXD #4 : GND
26. CN111-AC POWER #1 : N-NEUTRAL POWER OUTPUT

23. CN302-WIFI #1 : TXD #2 : RXD #3 : C5V #4 : GND #5 : DC12V

This Document can not be used without Samsung’s authorization.

5-2

Samsung Electronics

5-2

Slim 1Way (PANEL)
This Document can not be used without Samsung’s authorization.

PCB Diagram

1

CN401-DISPLAY #1: DC12V #2: LED_0 #3: LED_1 #4: LED_2 #5: LED_3 #6: LED_4 #7:

8: REMOCON Signal Out #9 : PANEL SELECTION #10: REMOCON Signal In #11: GND

12: DC5V #13: –

5-3

PCB Diagram
1
1. CN101-DISPLAY #1 : 12V #2~6 : LED CONTROL SIGNAL
This Document can not be used without Samsung’s authorization. 5-4

PCB Diagram
1
1. CN101-DISPLAY #1: DC12V #2: LED_0 #3: LED_1 #4: LED_2 #5: LED_3 #6: LED_4

7: #8: REMOCON OUTPUT SIGNAL #9 : PANEL SELECTION #10: REMOCON INPUT SIGNAL

11: GND #12: DC5V #13: This Document can not be used without Samsung’s

authorization.
5-5

PCB Diagram
Mini 4Way (PANEL)
– This Document can not be used without Samsung’s authorization.

1

1. CN01-DISPLAY

1 : DC12V #2 : LED_Operation #3 : LED_Defrost #4 : LED_Timer #5 : #6 :

LED_Filter #7 : #8 : Remocon Signal Out #9 : Panel Select #10 : Remocon Signal In #11 : GND #12 : DC5V #13 : –

5-6

Samsung Electronics

Home Duct
This Document can not be used without Samsung’s authorization.

PCB Diagram

2 46

8 10

12 14

16 18

1 35

79

11

13

15

17

19

20

Samsung Electronics

5-7

PCB Diagram

1. CN100 – AC POWER

1 : L #3 : N

5. CN413 – EVA IN/OUT/DIS TEMP. SENSOR

1 : EVI IN TEMP. SENSOR

3 : EVI OUT TEMP. SENSOR

5 : DISCHARGE TEMP. SENSOR

2,4,6 : GND

9. CN81 – ERROR/ COMP CHECK

1 : DC 12V #2 : ERROR CHECK

SIGNAL #3 : DC 12V #4 : COMP CHECK
SIGNAL

2. CN702 – HOT COIL or BYPASS

1 : N #3 : HOT COIL or BYPASS

CONTROL SIGANL
6. CN103 – DRAIN PUMP #1 : DRAIN PUMP
CONTROL SIGNAL #2 : GND
10. CN412 – ROOM TEMP. SENSOR

1 : ROOM TEMP. SENSOR

2 : GND

3. CN703 – DAMPER

1 : N #3 : DAMPER CONTROL

SIGANL

4. CN140 – THERMAL FUSE

1 : THERMAL FUSE SIGNAL #2 : GND

7. CN301 – DOWNLOAD

1~8 : DOWNLOAD SIGNAL

9 : GND #10~11 : DC 5V #12~16 : DOWNLOAD

SIGNAL #17 : GND #18~20 : DOWNLOAD
SIGNAL

8. CN411 – FLOAT SWITCH

1 : FLOAT SWITCH SIGNAL

2 : GND

11. CN83 – EXTERNAL CONTROL

1 : GND #2 : EXTERNAL CONTROL

SIGNAL

12. SH101 – EARTH #1 : EARTH

13. CN501 – DISPLAY

1 : DC 12V #3~10,13 : PANEL

SIGNAL #11 : GND #12 : DC 5V

14. CN201 – EEPROM

1 : GND #2 : NOT USED #3 : DC 5V #4~7 : EEPROM SIGNAL

15. CN808 – EEV(DVM)

1~4 : EEV CONTROL SIGNAL

5~6 : DC 12V

16. CN801 – SPI

1~2 : GND #3 : SPI CONTROL

SIGNAL #4 : NOT USED

17. CN311 – 2WIRE SUB

1 : DC 12V #2~5 : COMMUNICATION

SIGNAL #6 : DC 5V #7~12 : COMMUNICATION
SIGNAL

18. CN804 – VENTILATOR

1 : DC 12V #2 : VENTILATOR

CONTROL SIGNAL

19. CN302-COMMUNICATION

1~2 : COM1 COMMUNICATION SIGNAL

3 : DC 12V #4 : GND #4~6 : COM2

COMMUNICATION SIGNAL

20. CN703 – BLDC MOTOR

1 : DC 310V #3~6 : FAN MOTOR

CONTROL SIGNAL

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5-8

Samsung Electronics

Duct S
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PCB Diagram

Samsung Electronics

5-9

PCB Diagram

1. TE100-AC POWER

1 : AC POWER(L1) #2 : AC POWER(L2)

2. CN701-HOT COIL

1 : AC POWER(L2) #2 : AC POWER(L1)

3. CN290-EEPROM

1 : GND #3 : DV 5V #4 : EEPROM_SELECT #5 : EEPROM_SO #6 : EEPROM_SI #7 :

EEPROM_CLK

4. CN300-COMMUNICATION

1 : COM1(F1) #2 : COM1(F2) #3 : V1(DC12V) #4 : V2(GND) #5 : COM2(F3) #1 :

COM2(F4)

5. CN820-EXT CTRL

1 : GND #2 : EXTERNAL CONTROL SIGNAL

9. CN500-DISPLAY

1 : DC 12V #2~#6 : LED OUT(0,1,2,3,4) #7 : BUZZER_1 #8 : REMOCON_SIGN_OUT #9

: AUTO_SW #10 : REMOCON_INT #11 : GND #12 : DV 5V #13 : BUZZER_2 13. CN400-FLOAT SWITCH

1 : FLOAT SWITCH SIGNAL #2 : GND

17. CN826-FAN MOTOR

1 : MOTOR-U PHASE #2 : MOTOR-V PHASE #3 : MOTOR-W PHASE

6. CN825-SPI

7. CN823-VENTILATOR

8. CN821-DRAIN PUMP

1 : GND #2 : GND #3 : SPI SIGNAL(DC 12V)

1 : DC 12V

1 : DRAIN PUMP(DC 12V)

2 : VENT SIGNAL OUTPUT(GND) #2 : GND

10. CN822-COMP/ERROR MONITOR 11. CN824-EEV

12. CN401-ROOM SENSOR

1 : DC 12V #2 : ERROR OUT(GND) #3 : DC12V #4 : COMP/OPER OUT(GND)

1 : EEV_B_bar_OUT #2 : EEV_A_bar_OUT #3 : EEV_B_OUT #4 : EEV_A_OUT #5 : DC

12V #6 : DC 12V

1 : ROOM SENSOR #2 : GND

14. CN200-MAIN DOWNLOAD 15. CN402-THERMISTOR

18. SH100-EARTH

1 : EVA-IN SENSOR

2 : GND #3 : EEV_OUT SENSOR #4 : GND #5 : DISCHARGE SENSOR #6 : GND

1 : GND EARTH

16. CN220-INV DOWNLOAD

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5-10

Samsung Electronics

Console
This Document can not be used without Samsung’s authorization.

PCB Diagram

2

1

3

19 18 14 4 13 5 12 15 6 11 16 17 10

9 87

Samsung Electronics

5-11

PCB Diagram

1. CN100-AC POWER

1: L #3: N

2. CN101-GND #1: GND

5. CN401-HUMAN SENSING #1:DC12V #2,#3:COMM. SIGNAL #4:NOT USED #5:GND
9. CN801-SPI #1:GND #2:GND #3:CONTROL SIGNAL #4:NOT USED

6. CN313-2WIRES COMM.

1~#4:COMM. SIGNAL #5:EXTERNAL CONTROL #6:COMP CHECK #7:ERROR CHECK

8:VCC(DC5V) #9:GND #10:DC12V #11~#14:COMM. SIGNAL

10. CN2-UP LOUVER

1:DC12V #2~#5:CONTROL SIGNAL

13. CN413-EVA IN/OUT

1:EVA IN/OUT TEMP. SENSOR #2:GND

14. CN140-FUSE CHECK

1:FUSE CHECK SIGNAL #2:GND

3. CN703-FAN MOTOR

1:DC310V #2:NOT USED #3:AGND #4:DC15V #5:PC04 OUTPUT #6:RPM OUTPUT

7. CN31-COMM.1

1:COMM. SIGNAL F1 #2:COMM. SIGNAL F2

4. CN411-FLOAT S/W #1:FLOAT S/W #2:GND
8. CN32-DC12V #1:DC12V #2:GND

11. CN501-DISPLAY

1:DC12V #2~#6:DISPLAY LED CONTROL #7:VCC(DC5V) #8:REMOCON SIGNAL OUT #9:TOUCH

SWITCH SIGNAL #10:REMOCON SIGNAL IN #11:GND #12:VCC(DC5V) #13:NOT USED
15. CN804-VENT

1:DC12V #2:VENT SIGNAL

12. CN412-ROOM SENSOR #1:ROOM TEMP. SENSOR #2:GND
16. CN806-DOWN LOUVER #2~#5:CONTROL SIGNAL

17. CN808-EEV

1~#4:EEV CONTROL SIGNAL #5,#6:DC12V

18. CN301-DOWNLOAD

19. CN201-EEPROM PBA CONNECTOR

For Developer only,Not available in Actual Site 20 Pin Down Loader

1:GND #2:NOT USED #3~#7:EEPROM SIGNAL

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5-12

Samsung Electronics

5-2 Outdoor PCB Diagram
AJ020BXJ2CH, AJ024BXJ3CH (INVERTER PBA)
This Document can not be used without Samsung’s authorization.

PCB Diagram

13

68

24

57

9

11

10

12

1. CNP351-MAIN INV

1 : RXD #2 : TXD #3 : DC5V #4 : GND #5 : DC12V #6 : POWER CTRL #7 : AC LOAD

8 : AC LOAD2

5. CN241-HOT GAS(AC LOAD)

1 : L/RELAY CONTACT #2 : #3 : N

9. CN581-ECO COMM

1~7 : ECO COMM port

2. CN030-MAIN POWER #1 : N #2 : #3 : L
6. CN001-N/TAPTERMINAL #1 : N
10. CN401, 402, 403-COMP #CN401 : U, RED #CN402 : V, BLU #CN403 : W, YEL

3. CN571-ECO DOWNLOAD #1 ~ 4 : ECO DOWNLOAD

4. CNP901-BLDC FAN

1 : DC310V #2 : #3 : PGND #4 : DC15V #5 : V_SP #6 : F/B

7. CN571- EARTH TAP TERMINAL 8. CN002-L/TAP TERMINAL

1 : EARTH

1 :L

11. CN051, 052-REACTOR #CN501, 052 : REACTOR

12. CN551-DOWNLOAD #1~20 : DOWNLOAD

Samsung Electronics

5-13

PCB Diagram
AJ020BXJ2CH, AJ024BXJ3CH (MAIN PBA)
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5-14

Samsung Electronics

PCB Diagram

E1. CN100-AC LOAD POWER 2. CN101-4WAY VALVE

3. CN102-BASE HEATER

4. CN303-12V

1 : L-LIVE POWER INPUT #2 : –

3 : N-NEUTRAL POWER IN PUT

1 : L-RELAY CONTACT OUTPUT #2 : –

3 : N-NEUTRAL POWER OUTPUT

1 : L-RELAY CONTACT OUTPUT #2 : –

3 : N-NEUTRAL POWER OUTPUT

1 : DC 12V #2 : GND

5. CN402-HIGH PRESSURE SWITCH

6. CN501-ERROR CHECK/COMP CHECK

7. CN500- EXTERNAL CONTROL

8. CN401-PIPE IN/OUT TEMPERATURE SENSOR

1 : HIGH PRESSURE SWITCH INPUT SIGNAL

2 : GND

1 : DC 12V

2 : ERROR CHECK OUTPUT SIGNAL

3 : DC 12V

4 : COMP CHECK OUTPUT SIGNAL

1 : GND #2 : EXTERNAL CONTROL

INPUT SIGNAL

1 ~ #8 : PIPE IN TEMPERATURE SENSOR

13 ~ #20 : PIPE OUT TEMPERATURE SENSOR

9. CN200 – MAIN INV

10. CN403 – TEMPERATURE

COMMUNICATION

SEMSOR

11. CN805 – EEV C

12. CN202 – DOWNLOAD

1 : TCD #2 : RXD #3 : DC 5V

4 : GND #5 : DC 12V

6 : INV POWER CTRL #7 : MAIN AC LOAD POWER

CTRL #8 : –

1 : OUTDOOR TEMPERATURE SENSOR

3 : DISCHARGE TEMPERATURE SENSOR

5 : CONDENSOR TEMPERATURE SENSOR

7 : OLP TEMPERATURE SENSOR

2,4,6,8 : GND

1 : EEV C SIGNAL #2 : EEV C SIGNAL #3 : EEV C SIGNAL #4 : EEV CSIGNAL #5 :

GND

1~20 : DOWNLOAD SIGNAL

13.TB001-DRED & UPPER CTRL 14. CN201 – EEPROM

15. CN301 – ODU IDU

16. CN305 – COMMUNICATION

COMMUNICATION EMI EARTH

1 : DRED SIGNAL(DRM1) #2 : DRED SIGNAL(DRM2) #3 : DRED SIGNAL(DRM3) #4 : GND

5 : R1

6 : R2

1 : GND #2 : –

3 : 5V

4 : EEPROM SIGNAL #5 : EEPROM SIGNAL #6 : EEPROM SIGNAL #7 : EEPROM SIGNAL

1 : F1 #2 : F2

1 : EARTH

17. CN805 – EEV A

18. CN820 – EEV B

19. CN801 – EEV D

1 : EEV A SIGNAL #2 : EEV A SIGNAL #3 : EEV A SIGNAL #4 : EEV A SIGNAL #5 :

GND

1 : EEV B SIGNAL #2 : EEV B SIGNAL #3 : EEV B SIGNAL #4 : EEV B SIGNAL #5 :

GND

1 : EEV D SIGNAL #2 : EEV D SIGNAL #3 : EEV D SIGNAL #4 : EEV D SIGNAL #5 :

GND

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Samsung Electronics

5-15

PCB Diagram
AJ020BXS3CH, AJ*BX4CH, AJBX*5CH (INVERTER PBA)
This Document can not be used without Samsung’s authorization.

12

3

4

5

6

78

1. L, N – AC POWER INPUT

1 : L – LIVE POWER INPUT / BRN

2 : N – NEUTRAL POWER INPUT / SKY

5. CN351 – MAIN INV COMMUNICATION

1 : RXD #2 : TXD #3 : GND #4 : DC 5V #5 : DC 12V #6 : INV POWER CTRL

2. REACTOR-A1/B1

REACTOR-A1 : WHT #REACTOR-B1 : WHT

3. REACTOR-A2/B2

REACTOR-A2 : BLK #REACTOR-B2 : BLK

6. CN401,402,403 COMPRESSOR

7. CN901 – FAN MOTOR 1

CN401 : COMP. U-phase(RED) #CN402 : COMP. V-phase(BLU) #CN403 : COMP.

W-phase(YEL)

1 : DC310V

2 : N.C #3 : GND #4 : DC 15V

5 : FAN RPM #6 : FAN RPM FEEDBACK

4. CN551 – DOWNLOAD

1~20 : DOWNLOAD SIGNAL

8. CN911 – FAN MOTOR 2

1 : DC310V #2 : N.C #3 : GND #4 : DC 15V #5 : FAN RPM #6 : FAN RPM FEEDBACK

5-16

Samsung Electronics

AJ020BXS3CH, AJ*BX4CH, AJBX*5CH (MAIN PBA)
This Document can not be used without Samsung’s authorization.

PCB Diagram

Samsung Electronics

5-17

PCB Diagram

1. CN303 – DRED & UPPER CTRL 2. CN803 – EEV A

3. CN804 – EEV B

4. CN806 – EEV D

1 : DRED SIGNAL(DRM1) #2 : DRED SIGNAL(DRM2) #3 : DRED SIGNAL(DRM3) #4 : GND

5 : R1 #6 : R2

5. CN805 – MAIN EEV

1 : EEV D SIGNAL #2 : EEV D SIGNAL #3 : EEV D SIGNAL #4 : EEV D SIGNAL #5 :

GND
9. CN306 – DOWNLOAD

1~20 : DOWNLOAD SIGNAL

13. CN844 – 4WAY VALVE

1 : L – RELAY CONTACT OUTPUT

2 : #3 : N – NEUTRAL POWER

OUTPUT 17. CN501-ERROR CHECK/
COMP CHECK #1 : DC 12V #2 : ERROR CHECK #3 : DC 12V #4 : COMP CHECK

1 : EEV A SIGNAL #2 : EEV A SIGNAL #3 : EEV A SIGNAL #4 : EEV A SIGNAL #5 :

GND

1 : EEV B SIGNAL #2 : EEV B SIGNAL #3 : EEV B SIGNAL #4 : EEV B SIGNAL #5 :

GND

1 : EEV D SIGNAL #2 : EEV D SIGNAL #3 : EEV D SIGNAL #4 : EEV D SIGNAL #5 :

GND

6. CN807 – EEV E #1 : EEV E SIGNAL #2 : EEV E SIGNAL #3 : EEV E SIGNAL #4 : EEV E SIGNAL #5 : GND
10. CN303 – ODU IDU COMMUNICATION

1 : F1 #2 : F2

14. CN101 – AC POWER INPUT #1 : L – LIVE POWER INPUT #2: #3 : N – NEUTRAL POWER
INPUT

7. CN401 – TEMPERATURE SENSOR

1 : OUTDOOR TEMPERATURE SENSOR

3 : DISCHARGE TEMPERATURE SENSOR

5 : CONDENSOR TEMPERATURE SENSOR

7 : OLP TEMPERATURE SENSOR

2,4,6,8 : GND

11. CN809 – MAIN EEV(EDM)

1 : EEV A SIGNAL #2 : EEV A SIGNAL #3 : EEV A SIGNAL #4 : EEV A SIGNAL #5 :

GND
15. CN12 – 12V

1 : DC 12V #2 : GND

8. CN200 – EEPROM

1 : GND #2 : #3 : 5V #4 : EEPROM SIGNAL #5 : EEPROM SIGNAL #6 : EEPROM SIGNAL

7 : EEPROM SIGNAL

12. CN401-PIPE TEMPERATURE SENSOR

1 ~ #10 : PIPE IN TEMPERATURE SENSOR

13 ~ #22 : PIPE OUT TEMPERATURE SENSOR

16. CN800- EXTERNAL CONTROL

1 : GND #2 : EXTERNAL CONTROL

INPUT SIGNAL

18. CN302 – MAIN INV COMMUNICATION

1 : TXD #2 : RXD #3 : GND #4 : DC 5V #5 : DC 12V #6 : INV POWER CTRL

19. CN845 – BASE HEATER

1 : L – RELAY CONTACT OUTPUT

2 : #3 : N – NEUTRAL POWER

OUTPUT

20 CN1 – HIGH PRESSURE SW

1 : DC 5V #2 : GND

This Document can not be used without Samsung’s authorization.

5-18

Samsung Electronics

AJ020BXS3CH, AJ*BX4CH, AJBX*5CH (MAIN PBA)
– This Document can not be used without Samsung’s authorization.

PCB Diagram

1 23

4 56

1. L1 – AC POWER OUTPUT #1 : L – RELAY CONTACT
OUTPUT
5. L, 1(L) – AC POWER INPUT #1 :L – LIVE POWER INPUT

2. L2 – AC POWER OUTPUT #1 : N – NEUTRAL POWER
OUTPUT
6. N, 2(N) – AC POWER INPUT #1 :N – NEUTRAL POWER
INPUT

3. CN01 – AC POWER OUTPUT 4. EARTH

1 : L – RELAY CONTACT OUTPUT

2 : –

3 : N – NEUTRAL POWER OUTPUT

1 : EARTH

Samsung Electronics

5-19

6. Wiring Diagram
6-1 Indoor Unit
Slim 1Way, Mini 4Way

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Samsung Electronics

6-1

Home Duct

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6-2

Samsung Electronics

Duct S

Samsung Electronics

6-3

Console

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6-4

Samsung Electronics

MPAH

Samsung Electronics

ERROR EXPLANATION NO COMMUNICATION FOR 2 MINUTES
E101 BETWEEN INDOOR AND OUTDOOR UNIT ERROR ON ROOM TEMP SENSOR OF
E121 INDOOR UNIT (SHORT OR OPEN) ERROR ON EVA IN TEMP SENSOR OF
E122 INDOOR UNIT (SHORT OR OPEN) ERROR ON EVA OUT TEMP SENSOR OF
E123 INDOOR UNIT (SHORT OR OPEN) EEPROM ERROR OF MICOM (PHYSICAL
E162 PRO