LG LA100EL Dual Inverter Compressor Owner’s Manual

LA100EL Dual Inverter Compressor

OWNER’S MANUAL
AIR CONDITIONER
Read this owner’s manual thoroughly before operating the appliance and keep it handy for reference at all times.

TYPE : WINDOW (INVERTER)

EN

ENGLISH

MFL70501025
MFL70501025 Rev.06_111221

www.lg.com Copyright © 2020 – 2021 LG Electronics Inc. All Rights Reserved

TABLE OF CONTENTS
SAFETY INSTRUCTIONS ……………………………………………………..3
IMPORTANT SAFETY INSTRUCTIONS ………………………………………………….4
PRODUCT OVERVIEW …………………………………………………………8
Exterior Parts ……………………………………………………………………………………….8 Interior Parts…………………………………………………………………………………………8
INSTALLATION……………………………………………………………………. 9
Circuit Breaker Installation ……………………………………………………………………..9 Installation Overview ……………………………………………………………………………..9 Tools Needed ……………………………………………………………………………………….9 How to Install the Unit ………………………………………………………………………….10 Preparation of the Cabinet ……………………………………………………………………10 Drainage (Optional)……………………………………………………………………………..10 Installation of the Cabinet…………………………………………………………………….. 11 Space for Outside Air Flow…………………………………………………………………… 11 Installations of the unit into the Cabinet ………………………………………………….12
OPERATION ………………………………………………………………………13
Control Panel and Remote Control ………………………………………………………..13 Using the Light Off Function………………………………………………………………….15 Using the Auto Clean Function………………………………………………………………15 Wireless Remote Control ……………………………………………………………………..15 Ventilation…………………………………………………………………………………………..16 Air Direction………………………………………………………………………………………..16 Slinger Fan…………………………………………………………………………………………16
SMART FUNCTIONS…………………………………………………………..17
LG ThinQ Application …………………………………………………………………………..17 Smart Diagnosis………………………………………………………………………………….18
MAINTENANCE ………………………………………………………………….19
Air Filter……………………………………………………………………………………………..19
TROUBLESHOOTING …………………………………………………………20
Before Calling for Service …………………………………………………………………….20 Normal Sounds You May Hear………………………………………………………………20

SAFETY INSTRUCTIONS

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READ ALL INSTRUCTIONS BEFORE USE
Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages.
This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or injure you and others. All safety messages will follow the safety alert symbol and either the word WARNING or CAUTION.
These words mean:
WARNING
You may be killed or seriously injured if you do not follow instructions.
CAUTION
You may be injured or cause damage to the product if you do not follow instructions. All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what may happen if the instructions are not followed.

The following symbols are displayed on units.
This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposure to an external ignition source, there is a risk of fire.
This symbol indicates that the Operation Manual should be read carefully.
This symbol indicates that a service personnel should be handling this equipment with reference to the Installation Manual.
This symbol indicates that information is available such as the Operating Manual or Installation Manual.

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IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, fire, death, electric shock, scalding or injury to persons when using this product, follow basic precautions, including the following:
INSTALLATION
· Before use, the appliance must be properly installed as described in this manual. · Contact the authorized service technician for repair or maintenance of this unit. · Contact the installer for installation of this unit. · The air conditioner is not intended for use by young children or invalids without supervision. · Keep any required ventilation openings clear of obstruction. · Compliance with national gas regulations shall be observed. · When the power cord is to be replaced, replacement work shall be performed by authorized
personnel only using only genuine replacement parts. · Installation work must be performed in accordance with the National Electric Code by qualified and
authorized personnel only. · Connect to a properly rated, protected, and sized power circuit to avoid electrical overload. · Always plug into a grounded outlet. · Do not under any circumstances, cut or remove the third (ground) prong from the power cord. · When installing or moving the appliance, be careful not to pinch, crush, or damage the power cord. · Plug in the power plug properly. · Do not modify or extend the power cord. · Do not start/stop operation by plugging/unplugging the power cord. · Do not turn on the circuit breaker or power under condition that front grille, cabinet, control box are
removed or opened. Otherwise, it may cause fire, electric shock, explosion or death. · If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified person in order to avoid a hazard. · Use a dedicated circuit. · Do not disassemble or modify the product. · Adhere to all industry recommended safety procedures including the use of long-sleeved gloves
and safety glasses. · Disconnect the power cord or circuit breaker before installing or servicing the appliance. · Keep packaging materials out of the reach of children. These materials can pose a suffocation risk
to children. · Store and install the product where it will not be exposed to temperatures below freezing or
exposed to outdoor weather conditions. · Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
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OPERATION
· Use this appliance only for its intended purpose. · Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled, or
has missing or broken parts, including a damaged cord or plug. · Repair or immediately replace all power cords that have become frayed or otherwise damaged. Do
not use a cord that shows cracks or abrasion damage along its length or at either end. · Do not run cord under carpets or mats where it could be stepped on and damaged. · Keep the cord out from under heavy objects like tables or chairs. · Do not place the power cord near a heat source. · Do not use an adaptor or plug the product into a shared outlet. · Do not tamper with controls. · If you detect a strange sound, a chemical or burning smell, or smoke coming from the appliance,
unplug it immediately, and contact the LG Electronics Customer Information Center. · Never unplug the appliance by pulling on the power cord. Always grip the plug firmly and pull
straight out from the outlet. · Do not grasp the power cord or touch the appliance controls with wet hands. · If water enters the product, turn off the power at the main circuit, then unplug the product and call
for service. · If the product has been submerged, contact the LG Electronics Customer Information Center for
instructions before resuming use. · Unplug the product when unused for long periods. · Unplug the product before cleaning. · In the event of a gas leak (propane gas, etc.) do not operate this or any other appliance. Open a
window or door to ventilate the area immediately. · This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. · The interior of the product must only be cleaned by an authorized service center or a dealer. · Do not use solvent-based detergent on the product. Doing so can cause corrosion or damage, product failure, electrical shock, or fire.
GROUNDING INSTRUCTIONS
· The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock. The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded. DO NOT CUT OR REMOVE THE THIRD (GROUND) PRONG FROM THE POWER PLUG. – Situations when the appliance will be disconnected occasionally; Because of potential safety hazards, we strongly discourage the use of an adapter plug.
· Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded through the house wiring. The customer should have the circuit checked by a qualified electrician to make sure the receptacle is properly grounded.
· Disconnect the power cord from the adapter, using one hand on each. Otherwise, the adapter ground terminal might break. Do not use the appliance with a broken adapter plug. – Situations when the appliance will be disconnected often; Do not use an adapter plug in these situations. Unplugging the power cord frequently can lead to an eventual breakage of the ground terminal. The wall power outlet should be replaced by a three-slot (grounding) outlet instead.
5

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CAUTION
To reduce the risk of minor or moderate injury to persons, malfunction, or damage to the product or property when using this product, follow basic precautions, including the following:
INSTALLATION
· Take care when installing the product that exhaust or condensation does not damage nearby property.
· Follow installation instructions exactly to avoid excessive vibration or water leakage. · Do not install the appliance in an area where it is directly exposed to sea air (salt spray).
– Saline conditions are a cause of corrosion. (Particularly, corrosion of the condenser and evaporator can damage the appliance or impair its performance.)
· Set up windbreak in front of the outdoor unit if installing it in coastal areas. – Avoid direct exposure to salt winds. – Install a firm and stiff concrete-wind shield that can withstand salt winds.
· Wear gloves and use caution when unpacking and installing the appliance. Screws or sharp edges can cause injuries.
OPERATION
· This appliance is not intended for use as a precision refrigeration system. Do not use it for special purposes such as maintaining pets, food, precision machinery, or art objects.
· When installing or moving the appliance, be careful not to pinch, crush, or damage the power cord. · Make sure the air inlet and outlet are free from obstructions. · Use a soft cloth to clean the appliance. Do not use waxes, thinners, or harsh detergents. · Do not step on or place heavy objects on top of the appliance. · Do not operate the appliance without the filter securely installed. · Do not drink water drained from the appliance. · Be sure to ventilate sufficiently when the air conditioner and a heating appliance such as a heater
are used simultaneously. · Being exposed to direct airflow for an extended period of time could be hazardous to your health. · Remove the batteries if the remote control is not to be used for an extended period of time. · Never mix different types of batteries, or old and new batteries for the remote control. · Stop using the remote control if there is a fluid leak in the battery. If your clothes or skin are
exposed to the leaking battery fluid, wash off with clean water. · If the leaking battery fluid has been swallowed, rinse the inside of the mouth thoroughly and
consult a doctor. · Do not recharge or disassemble the batteries.
MAINTENANCE
· Clean the filter every two weeks. · Never touch the metal parts of the air conditioner when removing the air filter. · Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water.
Use a smooth cloth.
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REFRIGERANT (FOR R32 ONLY) WARNING
· Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
· The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater).
· Do not pierce or burn. Be aware that flammable refrigerants may not contain an odor. · The appliance shall be stored in a well-ventilated area where the room size corresponds to the
room area as specified for operation. · The appliance shall be stored so as to prevent mechanical damage from occurring.
Technical Safety
· Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification.
· Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.
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PRODUCT OVERVIEW
Exterior Parts
9

Interior Parts
34

1

2

8

7

1

6

543

2

1 Control Panel 2 Remote Control 3 Air Filter 4 Vertical Air Deflector (Horizontal Louver) 5 Horizontal Air Deflector (Vertical Louver) 6 Air Inlet 7 Front Grille 8 Cabinet 9 Air Outlet

1 Evaporator 2 Air Guide 3 Control Box 4 Brace 5 Compressor 6 Condenser 7 Base Pan 8 Power Cord

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5 6 7 8

8

INSTALLATION

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Circuit Breaker Installation
Read thoroughly and follow all directions provided. A circuit breaker must be installed between the power source and the unit if the plug is not used (see illustration below).

Main Power source
Circuit Breaker Use a circuit breaker or time delay fuse.

NOTE · Use 15 A circuit breaker.
Installation Overview
Foam

Drain pan

(

)

Screw

(For Front Grille, L: 10mm, 2EA)

Tools Needed

(L : 30mm, 3EA)

Phillips-head screwdriver Flat-blade screwdriver

Pencil

Tape measure

Cutting knife

Scissors

Level 9

How to Install the Unit

1 Measure the space for installation to assure a
good fit. The air conditioner must be installed firmly into place to prevent vibration and noise.
2 Avoid exposure to direct sunlight.
3 Remove all obstacles from the rear of the
unit. There must be at least 50 cm (20 in.) of cleared space around the rear of the unit. Obstacles restricting the airflow may reduce the cooling efficiency of the unit.
4 The unit should be installed with a slight tilt
towards the outside to allow condensed water to drain. (About 10~15 mm or 1/4 bubble with Level)

Foam

Awning

Fence

Cooled air

Heat radiation

10~15 mm Over 50 cm

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2 Slide the unit from the cabinet by gripping the
base pan handle and pulling forward while bracing the cabinet.
CAUTION
· The unit is heavy. To prevent injury, use proper lifting techniques when pulling unit forward from cabinet. Obtain assistance from another person if possible.
Drainage (Optional)
The base-pan may overflow due to high humidity. To drain the excess water, remove the drain cap from the base pan of the unit and secure the Drain Pan.
1 Remove the rubber cap from the hole under
the base-pan.

70-150 cm

1/4 Bubble

Level
CAUTION
· The external grille must be exposed outside for air discharge.
Preparation of the Cabinet 1 Remove 5 screws which fasten the cabinet at
both sides and at the back. (Keep the screws for later use.)
Shipping Screws

2 Install the drain pan over the corner of the
cabinet with 2-4 screws.
3 Connect the drain hose to the outlet located
on the bottom of the drain pan. (You can purchase the drain hose or tubing locally to satisfy your particular needs. Drain hose is not supplied.)

Cabinet Drain Hose

Drain Pan Screw

10

Installation of the Cabinet
1 Prepare the hole in the wall so that the bottom
of the cabinet is well supported, the top has minimum clearace and the air inlet louveres have clearance as shown. Holes from the outside through to the cavity should be sealed. The cabinet should slope down towards the rear by about 10~15 mm to allow water formed during operation to drain.
2 Install the cabinet into the wall and secure.
Ensure the foam seals are not damaged. Flash, seal or fill gaps around the inside and outside to provide satisfactory appearance and protection against the weather, insects and rodents.
NOTE
· Unit may be supported by a solid frame from below or by a hanger from a solid overhead support.

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Space for Outside Air Flow

AIR IN

AIR IN

AIR OUT 100 mm minimum OPTION A

45° BRICK CUT AWAY TO CLEAR LOUVRES
BRICK WALL
AIR IN LOUVRE

45° BRICK CUT AWAY
TO CLEAR LOUVRES FRONT

110~180 mm

100 mm
TOP VIEW

BRICK WALL

AIR IN 100 mm

AIR OUT OPTION B

FLASH OR SEAL AROUND EXTERNAL WALL FRAME OR ARCHITRAVE

STURDY TIMBER FRAME ALL ROUND UNIT
TIMBER FRAMED WALL OR PARTITION

DRAIN CHUTE
EXTERNAL SUPPORT FRAME AT BALANCE POINT OF RAC
ALTERNATIVELY, BRACKETS AS ILLUSTRATED BELOW MAY BE USED.

Preferred method of installation into a timber framed wall, partition or window.

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Installations of the unit into the Cabinet
1 Slide the air conditioner into the case.
Reinstall the 2 screws removed earlier on each side of the case.

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4 Connect the wire harness from the front grille
assembly to the air conditioner.

Screw

Screw

CAUTION
· The unit is heavy. Use an assistant to help lift the unit and set it in place. Lifting and maneuvering the unit by yourself could result in injury.
2 Stuff the foam around the unit to prevent air
and insects from getting into the room.
The Foam (Around the unit)

3 Before installing the front grille, pull out the
vent control lever located above the unit control knobs, as shown. (for some models)

5 Attach the front grille assembly to the cabinet
by inserting the grille tabs into the slots on the front of the cabinet. Push the grille in until it snaps into place.
NOTE · Carefully guide the vent control lever through
the grille as you push the grille in.
6 Open the air inlet grille and secure the front
grille assembly with 2 screws (L:10 mm).

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OPERATION

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Control Panel and Remote Control

56 7

Remote Control

Type 1

Type 2

8

8

1

9

Auto Clean(3 s)

4

7

Light Off(3 s)
3

10

2

4

3

2

1

NOTE · The feature may be changed according to the type of model.

1

9

10

3

2

5FNQ Auto Clean(3 s)

4

7

Light Off(3 s)
8

1 Power Press to turn the air conditioner ON or OFF.

4 Operation Mode Press the Mode button to cycle between 4 types of air conditioner operation: Energy Saver / Cool / Fan / Dry.

2 Sleep Mode This mode keeps operating noise to a minimum and turns the air conditioner off after a set time. The timer can be set from 1 to 7 hours.

Energy Saver – In this mode the compressor and fan turn off when the set temperature is achieved. Approximately every 3 minutes the fan turns on to allow the unit sensor to accurately determine if more cooling is needed.

· In the Cool, Energy Saver, Dry Mode setting temperature increases by 1 °C after 30 minutes and additional 1 °C after another 30 minutes for a more comfortable sleep.

Cool – This mode is ideal on hot days to cool

and dehumidify the room quickly. Use the

Temp

buttons to set the desired room

temperature and use the Fan Speed button to

set the desired fan circulation speed.

· The setting temperature increases up to 2 °C from the preset temperature.

Fan – In this mode the fan circulates air but the compressor does not run. Use the Fan Speed

3 Delay ON/OFF Timer Delay ON – When the air conditioner is off, set it to automatically turn on from 1 to 24 hours later, at its previous mode and fan settings.
Delay OFF – When the air conditioner is on, set it to automatically turn off from 1 to 24 hours later.

button to set fan speed to High, Medium or Low. In this mode, you cannot adjust the set temperature.
Dry – This mode is ideal for rainy and damp days to dehumidify the room rather than cooling it significantly. Humidity is removed from the room by the combination of compressor operation and the fan speed fixed at Low. The compressor and fan turn off once the set

NOTE · Each press of the Timer button

temperature is reached. Fan speed cannot be adjusted in Dry mode.

advances the timer by 1 hour. After

the last press the display returns to the

temperature setting.

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5 Wi-Fi (Optional) Enables connection of the air conditioner to the home Wi- Fi. · Wi-Fi Pairing : Mode + Fan Speed · Wi-Fi Off : Power + Fan Speed
6 Clean Filter The Clean Filter LED lights up to notify you that the filter needs to be cleaned. After cleaning the filter, press Temp and together on the control panel to turn off the Clean Filter light.
NOTE · The filter reset must be done using the
control panel, not the remote control. · This feature is a reminder to clean the
air filter for more efficient operation. The LED light turns on after 250 hours of operation.
7 Fan Speed Press to set the Fan Speed to Low (F1), Medium (F2) or High (F3). Also set the Diagnosis if held for 5 seconds (For remote type 2).
8 Temperature Control The thermostat monitors room temperature to maintain the desired temperature. The thermostat can be set between 16 °C­30 °C (60 °F­86 °F). Press or arrows to increase or decrease temperature setting.
9 Energy Saver In this mode the compressor and fan turn off when the set temperature is achieved. Approximately every 3 minutes the fan turns on to allow the unit sensor to accurately determine if more cooling is needed.
NOTE · This function is available with Cooling
Mode.
10 Clear Cancel Sleep and Timer settings. Also set the Diagnosis if held for 5 seconds. Also set the Diagnosis if held for 5 seconds (For remote type 1).

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NOTE · Auto Restart : If the air conditioner turns
off due to a power outage, it will restart automatically once the power is restored, with the same settings as were set before the unit turned off. · Energy Saver : The unit defaults to the Energy Saver mode each time the unit is switched on except in Fan mode or when power is restored after an electrical power outage. · The remote control will not function properly if the AC infrared sensor is exposed to direct light or if there are obstacles between the remote controller and the air conditioner.
Using the Light Off Function
You can set the brightness of the control panel, · Press Mode button on the remote control for 3
seconds, or · Press Mode and Sleep button button together
on the control panel.
NOTE · Turn on/off the control panel.
Using the Auto Clean Function
In the Cooling and Dry Mode, Moisture is generated inside the indoor unit. This function removes such moisture. · Press Energy Saver button on the remote
control for 3 seconds (For remote type 1), or · Press Sleep button on the remote control for 3
seconds (For remote type 2). · or is displayed on the remote control.
NOTE · If you turn off the unit, the fan continues to run
for 10 minutes and cleans the inside of the indoor unit.

14

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Wireless Remote Control
Inserting Batteries
If the display screen of the remote control begins to fade, replace the batteries. Insert AAA (1.5 V) batteries before using the remote control.
1 Remove the cover on the back of the remote
control.
2 Insert the new batteries and make sure that
the + and – terminals of the batteries are installed correctly.
NOTE · New batteries are supplied with the air
conditioner for use in the remote control. · Do not use a rechargeable battery. Make sure
that the battery is new. · In order to prevent discharge, remove the
battery from the remote control if the air conditioner is not going to be used for an extended period of time. · Keep the remote control away from extremely hot or humid places. · To maintain optimal operation of the remote control, the remote sensor should not be exposed to direct sunlight.
15

Ventilation
Push the ventilation lever in to the closed position to maintain the best cooling performance. Pull the ventilation lever out to open the vent and draw fresh air into the room.
Close Open

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Slinger Fan
This air conditioner is equipped with a slinger fan. (See drawing.) The fan’s outer ring picks up the condensed water from the base pan if the water level gets high enough. The water is then picked up by the fan and expelled through the condenser, making the air conditioner more efficient.

Ring
Air Direction
Airflow can be adjusted by changing the direction of the air conditioner’s louvers.
Adjusting Horizontal Airflow Direction
The horizontal airflow is adjusted by moving the levers of the vertical louvers to the left or right.

Adjusting Vertical Airflow Direction
Touch the horizontal louvers to adjust the airflow up or down.

NOTE · When the weather is extremely hot, the unit
may turn off automatically to protect the compressor.
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SMART FUNCTIONS
LG ThinQ Application
This feature is only available on models with
the b or ThinQ logo
The LG ThinQ application allows you to communicate with the appliance using a smartphone.
LG ThinQ Application Features
Communicate with the appliance from a smartphone using the convenient smart features.
Smart Diagnosis
If you experience a problem while using the appliance,this smart diagnosis feature will help you diagnose the problem.
Settings
Allows you to set various options on the appliance and in the application.
NOTE · If you change your wireless router, internet
service provider, or password, delete the registered appliance from the LG ThinQ application and register it again. · The application is subject to change for appliance improvement purposes without notice to users. · Functions may vary by model.
Before Using LG ThinQ Application
1 Check the distance between the appliance
and the wireless router (Wi-Fi network). · If the distance between the appliance and
the wireless router is too far, the signal strength becomes weak. It may take a long time to register or installation may fail.
2 Turn off the Mobile data or Cellular Data on
your smartphone.

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3 Connect your smartphone to the wireless
router.
NOTE
· To verify the Wi-Fi connection, check that f
icon on the control panel is lit. · The appliance supports 2.4 GHz Wi-Fi
networks only. To check your network frequency, contact your Internet service provider or refer to your wireless router manual. · LG ThinQ is not responsible for any network connection problems or any faults, malfunctions, or errors caused by network connection. · If the appliance is having trouble connecting to the Wi-Fi network, it may be too far from the router. Purchase a Wi-Fi repeater (range extender) to improve the Wi-Fi signal strength. · The Wi-Fi connection may not connect or may be interrupted because of the home network environment. · The network connection may not work properly depending on the Internet service provider. · The surrounding wireless environment can make the wireless network service run slowly. · The appliance cannot be registered due to problems with the wireless signal transmission. Unplug the appliance and wait about a minute before trying again. · If the firewall on your wireless router is enabled, disable the firewall or add an exception to it. · The wireless network name (SSID) should be a combination of English letters and numbers. (Do not use special characters.) · Smartphone user interface (UI) may vary depending on the mobile operating system (OS) and the manufacturer. · If the security protocol of the router is set to WEP, you may fail to set up the network. Please change it to other security protocols (WPA2 is recommended) and register the product again.

17

Installing the LG ThinQ Application
Search for the LG ThinQ application from the Google Play Store or Apple App Store on a smartphone. Follow instructions to download and install the application.
Open Source Software Notice Information
To obtain the source code under GPL, LGPL, MPL, and other open source licenses that have the obligations to disclose source code, that is contained in this product, and to access all referred license terms, copyright notices and other relevant documents please visit https:// opensource.lge.com. LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to opensource@lge.com. This offer is valid to anyone in receipt of this information for a period of three years after our last shipment of this product.
Smart Diagnosis
This feature is only available on models with the
c or d logo.
Use this feature to help you diagnose and solve problems with your appliance.
NOTE · For reasons not attributable to LGE’s
negligence, the service may not operate due to external factors such as, but not limited to, Wi-Fi unavailability, Wi-Fi disconnection, local app store policy, or app unavailability · The feature may be subject to change without prior notice and may have a different form depending on where you are located.

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Using LG ThinQ to Diagnose Issues
If you experience a problem with your Wi-Fi equipped appliance, it can transmit troubleshooting data to a smartphone using the LG ThinQ application. · Launch the LG ThinQ application and select
the Smart Diagnosis feature in the menu. Follow the instructions provided in the LG ThinQ application.
Using Audible Diagnosis to Diagnose Issues
Follow the instructions below to use the audible diagnosis method. · Launch the LG ThinQ application and select
the Smart Diagnosis feature in the menu. Follow the instructions for audible diagnosis provided in the LG ThinQ application.
1 Plug the power plug in the outlet properly. 2 Place the mouthpiece of your smartphone
close to the c or d logo.
3 Press and hold the DIAGNOSIS [5 s] button
for 5 seconds or longer while holding the smartphone mouthpiece to the logo until the data transfer is complete. · Keep the smartphone in place until the data
transfer has finished. Time remaining for data transfer is displayed.
4 After the data transfer is complete, the
diagnosis will be displayed in the application.
NOTE · For best results, do not move the smartphone
while the tones are being transmitted. · Be sure to keep ambient noise to a minimum or
the phone may not correctly receive the buzzer beeps from the indoor unit.

18

MAINTENANCE
WARNING
· Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops.
Air Filter
Check the air filter at least twice a month to see if cleaning is necessary. Trapped particles in the filter can build up and block the airflow, reducing cooling capacity and causing an accumulation of frost on the evaporator.
Cleaning the Air Filter
1 Remove the air filter from the front grille by
pulling the filter forward and then up slightly.

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2 Wash the filter using lukewarm water below
40 °C (104 °F).
3 Gently shake the excess water from the filter. 4 Dry the filter in the shade. 5 Insert the filter into the Front grille.
Cleaning the Air Conditioner
· Wipe the front grille and inlet grille with a cloth dampened in a mild detergent solution.
· Wash the cabinet with mild soap or detergent and lukewarm water, then polish using liquid appliance wax.

NOTE
· To ensure continued peak efficiency, the condenser coils (outside of unit) should be checked periodically and cleaned if clogged with soot or dirt from outside air.
· For repair and maintenance, contact a LG Electronics Customer Service Hotline. Have your model number and serial number available.

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TROUBLESHOOTING

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Before Calling for Service
The appliance is equipped with an automatic error-monitoring system to detect and diagnose problems at an early stage. If the appliance does not function properly or does not function at all, check the following before you call for service.

Normal Sounds You May Hear

1

2

5
4
3
1 High Pitched Chatter Today’s high efficiency compressors may have a high pitched chatter during the cooling cycle.
2 Sound of Rushing Air At the front of the unit, you may hear the sound of rushing air being moved by the fan.
3 Gurgle/Hiss Gurgling or hissing noise may be heard due to refrigerant passing through evaporator during normal operation.
4 Vibration Unit may vibrate and make noise because of poor wall or window construction or incorrect installation.
5 Pinging or Swishing Droplets of water hitting condenser during normal operation may cause pinging or swishing sounds.

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Problem

Possible Causes & Corrective Action

The air conditioner is unplugged. · Make sure the air conditioner plug is pushed completely into the outlet.

Air conditioner does not start.

The fuse is blown/circuit breaker is tripped. · Check the house fuse/circuit breaker box and replace the fuse or reset the
breaker.
Power failure. · If power failure occurs, turn the mode control to off. When power is restored,
wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload.

Airflow is restricted. · Make sure there are no curtains, blinds, or furniture blocking the front of the
air conditioner.

The temp control may not be set correctly. · Set the desired temperature to a level lower than the current temperature.

Air conditioner does not cool as it should.

The air filter is dirty. · Clean the filter at least every 2 weeks. See the `MAINTENANCE (Cleaning
the Air Filter)’ section.
The room may have been hot. · When the air conditioner is first turned on, you need to allow time for the
room to cool down.

Cold air is escaping. · Check for open fumace floor registers and cold air returns.

Cooling coils have iced up. · See `Air conditioner freezing up’ below.

Air conditioner freezing up.

The cooling coils are iced over. · Ice may block the air flow and obstruct the air conditioner from properly
cooling the room. Set the Fan Speed High at Fan or Cool mode.

Water drips outside.

Hot, humid weather. · This is normal.

21

EN

Problem

Possible Causes & Corrective Action

The air conditioner is not tilted to the outside. Water drips Indoors. · For proper water disposal, make sure the air conditioner slants slightly from
the cabinet front to the rear.

Water collects in base pan.

Moisture removed from air and drains into base pan. · This is normal for a short period in areas with little humidity; normal for a
longer period in very humid areas.

Air conditioner turns on and off rapidly.

Dirty air filter – air restricted. · Clean air filter.
Outside temperature extremely hot. · Refer to installation instructions or check with installer.

Noise when unit is cooling.

Air movement sound. · This is normal. If too loud, set to lower FAN Speed.
Window vibration – poor installation. · Refer to installation instructions or check with installer.

Room too cold.

Set temperature too low. · Increase set temperature.

Can’t connect the LG ThinQ App. to the air conditioner.

Air conditioner is turned off. · Turn the air conditioner on.
Wireless router is turned off. · Turn the router on.

The air conditioner is not connecting to the Wi-Fi.

The Wi-Fi router is too far from the air conditioner. · Move the router closer to the air conditioner or purchase and install a Wi-Fi
repeater (signal booster).
You do not have permission to use the router or it is incompatible. · Make sure you are selecting the correct wireless router from the list. The
router must be set to 2.4 GHz.

22

EN

Problem

Possible Causes & Corrective Action

The password for the Wi-Fi that you are trying to connect to is incorrect. · Find the Wi-Fi network connected to your smartphone and remove it, then
register your appliance on LG ThinQ.

Mobile data for your smartphone is turned on. · Turn off the Mobile data of your smartphone and register the appliance
using the Wi-Fi network.

Your home appliance and smartphone is not connected to the Wi-Fi network.

The wireless network name (SSID) is set incorrectly. · The wireless network name (SSID) should be a combination of English
letters and numbers. (Do not use special characters.).
The router frequency is not 2.4 GHz. · Only a 2.4 GHz router frequency is supported. Set the wireless router to
2.4 GHz and connect the appliance to the wireless router. To check the router frequency, check with your Internet service provider or the router manufacturer.

The distance between the appliance and the router is too far. · If the distance between the appliance and the router is too far, the signal
may be weak and the connection may not be configured correctly. Move the location of the router so that it is closer to the appliance.

23

References

• LG Open Source
• LG Electronics & Home Appliances | Shop Now | LG USA

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