Whynter BTU Portable Air Conditioner and Heater with 3M Silvershield Filter Plus Autopump Instruction Manual

: June 7, 2024
: Whynter

Table of Contents

Whynter BTU Portable Air Conditioner and Heater with 3M Silvershield
DISPOSAL INFORMATION
SAFETY PRECAUTIONS
INTRODUCTION / TECHNICAL DATA
PARTS IDENTIFICATION
CONTROL PANEL
INSTALLATION
REMOTE CONTROL
CARE AND MAINTENANCE
TROUBLESHOOTING
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Whynter BTU Portable Air Conditioner and Heater with 3M Silvershield

Filter Plus Autopump

product

DISPOSAL INFORMATION

Thank you for choosing the Whynter 14,000 BTU Portable Air Conditioner and Heater with 3M Sil-vershield filter. Please follow the instructions provided in this user guide to obtain the very best performance from your portable air conditioner and take full advantage of the many features your port-able air conditioner offers you. We trust that your Whynter air conditioner will provide the performance and reliability that we stand for.

Please keep this user manual in a safe place for future reference.

SAFETY PRECAUTIONS

WARNING: TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK, OR INJURY WHEN USING YOUR AIR CONDIITIONER, FOLLOW THESE BASIC PRECAUTIONS:

Before the appliance is used, it must be properly positioned and installed as detailed in this manual.

Do not under any circumstances cut or remove the third (ground) prong from the power cord
Make sure this unit is connected to a correctly grounded power supply outlet. Do not use an extension cord or power strip
The power cord is UL listed. It has a built-in L.C.D.I. (leakage, current, detection, interruption) circuit breaker for added safety. If the power supply is interrupted, press the reset button to reconnect the unit to power source
It is recommended to use a separate circuit that its size should be 15 Amps for the air conditioner
Do not use an excessively wet cloth, industrial solvents, oil-based products to clean this portable air conditioner
To avoid the risk of shock, the product should never be used in bathrooms, shower rooms, or in any other steamy or wet areas
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliances
Do not repair, disassemble and/or modify the unit by yourself
Always turn off the portable air conditioner when cleaning the air filter, and transporting
Do not turn this unit on and off by plugging and unplugging. Always use the ON/OFF switch
Transport the unit in an upright position only, or leave it in an upright position for at least 4 hours before first use
Ensure curtains or other objects are not obstructing the air inlet filters
Do not bend or crush the exhaust hose while in use
Always allow at least 20” of clearance around the unit for ventilation. Do not use this unit inside closets, cabinets and/or cramped spaces between furniture
This unit is optimized to operate in an ambient temperature of 64°F – 90°F
This unit must be installed in an area protected from the element, such as wind, rain, water spray or drips
The unit should not be located next to ovens, grills or other sources of high heat
Always place the unit on even and hard and level surface
Do not sit or place objects on the unit
Do not allow children to climb, stand or hang on the appliance. The air conditioner could tip over and get dam-aged and/or seriously injure somebody
Keep fingers out of the air intakes and air outlets
The appliance is an electrical appliance. To avoid injury from electrical shock do not operate it with wetlands, while standing on a wet surface or while standing in water. Do not use it in outdoors or in wet conditions
When positioning or moving the appliance, ensure it is not turned upside down or greater than 45° or more off level
This appliance is designed for household, non-commercial use only. Any other use will void the warranty
Do not plug into the power outlet before set up is completed
Do not operate this unit without the air filter(s)
Do not use harsh chemicals to clean the filter(s). Dry thoroughly before inserting the filter(s) into the unit
Do not add extra length to the exhaust hose by more than a total length of 9’. This will reduce the cooling efficiency of the portable air conditioner
At the end of each season, all water must be drained from the unit and filter(s) must be cleaned before storage

INTRODUCTION / TECHNICAL DATA

HOW IT WORKS
The Whynter compact CFC-free, lead-free, and energy efficient 14,000 BTU portable air condi-tioner and heater, helps you stay cool while working with better environmental standards and stay warm during winter in any room while reducing energy consumption.
This high output portable air conditioner, specially designed to be mobile, can be easily setup in almost any indoor location and is most commonly used in data closets / server rooms, bedrooms, classrooms and garages / workshops.
This Whynter ARC-148MHP portable air conditioner features an ECO-FRIENDLY CFC- free GREEN R-410A refrigerant and lead-free RoHS compliant components.

TECHNICAL DATA

Window Kit Length:

| Minimum: 26.5”

Maximum: 48”

PARTS IDENTIFICATION

FRONT VIEW

BACK VIEW

Operating Conditions

Mode	Room Temperature
Cool	Higher than 64°F
Dry	Higher than 60°F
Heat	Higher than 45°F

Leakage-Current Detection and Interruption (LCDI)

Your portable air conditioner is supplied with a Leakage-Current Detection and Interruption (LCDI) plug. This plug reduces the risk of fire due to arcing faults in the power supply cord. Please follow the instructions below to ensure that LCDI plug works properly.

Plug the power cord to a grounded wall outlet. Do not plug to a power strip or extension cord.
Press the TEST button on the plug. This should trip the plug and cut the power to the air conditioner.
If the plug does not trip and the unit comes on, please contact technical support.
Press the RESET button to start the air conditioner.
Do NOT use the TEST and RESET buttons to turn the air conditioner on and off.

CONTROL PANEL

Power Button

Press to turn the air conditioner on and off

| Economy Button

Press to activate Economy mode

---|---
Fan Speed Button

Press to change fan speed

• Controls the 3 fan speeds: LOW, MED, HI and AUTO. The fan speed indicator lights illuminates to show the set fan speed. When the AUTO speed is selected, none of the fan speed indicator illuminates.

| Mode Button

Press to change mode

• Controls the 5 function modes:

HEAT, COOL, AUTO, FAN and DRY.

Timer Button

Press to program Timer Delayed Switch ON or OFF function

| Swing Button

To adjust the air flow direction

Up ( + ) and Down ( – ) Buttons Adjusts set temperature (1°C/ 2°F increments) or timer hours (0 – 24 hours).

· This unit is capable of displaying set temperature in Fahrenheit or in Celsius. To convert from one to the other, press and hold the Up and Down buttons for 3 seconds.

| LED Display and Follow me

• In Cool mode: shows set temperature in °C or °F and AUTO timer setting.

• In DRY and FAN only modes: shows room temperature.

• Follow me display light

Error Codes:

E1 – Room temperature sensor error
Unplug unit and restart in 5 minutes
E2 – Evaporator sensor error
Unplug unit and restart in 5 minutes
E3 – Condenser sensor error
Unplug unit and restart in 5 minutes
E4 – Display panel sensor error
Unplug unit and restart in 5 minutes
P1 – Water reservoir full
Drain water from the unit

INSTALLATION

WARNING: NEVER OPERATE THE AIR CONDITIONER WITHOUT THE AIR FILTER

AIR FILTERS
Silver shield Pre-filter This portable air conditioner is equipped with a Silver shield pre-filter, which removes large particles such as dust, pet hair and dander. This pre-filter can be removed for cleaning by pulling the filter frame back and out. This pre-filter washable and does not need to be replaced.

3M™ Antimicrobial High Air Flow Filter
This portable air conditioner comes with the 3M™ Antimicrobial High Air Flow Filter which is designed to remove particles such as dust, pet hair and dander, antimicrobial agent helps inhibit the growth of mold and mildew, and the micro-structured electrostatically charged filtration media traps and retains particles. The 3M Filter is pre-installed.

Note: The 3M Filter should be replaced every 2-3 months depending on usage. Please contact support@whynter.com for retail sales information.

WATER DRAINAGE:
The dehumidifying capacity of this unit is 71 pints per day. The patented self-evaporating function of the ARC-148MHP unit fully exhausts all condensation automatically in most environments when humidity is less than 70%. Areas with more than 70% humidity, the self-evaporating function can still exhaust about 98% of the moisture and the remaining 2% of moisture will be collected in the water tank of the air conditioner. When the water reservoir reaches its maximum level, the unit will beep 8 times and the digital display will show P1. When the unit displays P1, all operation modes will be disabled temporarily, while the fan continuously running. The P1 code will disappear when the water is completely drained.

Manual drainage (Fig. 1a)In AUTO, COOL, DRY, or HEAT mode, carefully move the unit to a drain location or position a flat container, dish or optional drain bucket accessory (sold separately) under the drain area of the lower drain port. Remove the bottom drain plug and let the water drain. Replace the drain plug and plug in to resume operation.
Continuous drainage (Fig. 1b)In AUTO, COOL or DRY mode, remove the upper drain plug from the back of the unit and install the drain hose. Place the open end of the hose to a drain area. This method is recommended if uninterrupted operation is desired.
Heat pump drainage (Fig. 1c)This unit has a condensate pump feature that can pump out (and up) water through the included drain hose for continuous water removal during HEAT Mode. Remove the heat pump drain plug from the back of the unit and install the drain hose. Place the open end of the hose to a drain area.

NOTE: The condensate pump will only engage during Heat mode and will not work in any other modes.

LOCATION:
The air conditioner should be placed on a hard and level surface strong enough to support the unit. The unit has casters and it should only be rolled on smooth, flat surfaces. Use caution when rolling on carpet surfaces. Do not attempt to roll the unit over objects. Never place any obstacles around the air inlet or outlet and allow at least 20″ of clearance for efficient air- conditioning.

EXHAUST HOSE INSTALLATION:
When using the air conditioner in COOL or HEAT mode, hot air must be exhausted out of the room to complete the air exchange of the condenser. When the unit is operating in DRY or FAN only mode, installation of the exhaust hose is optional.

Snap the hose connector to the unit onto one end of the exhaust hose and then snap the hose connector to the window onto the other end. Fig. 1
Line-up the hose connector hook onto the back of the unit and slide into the hole seat. See Fig. 2
Only extend the exhaust hose to the necessary length keeping it as short and straight as possible.

WINDOW KIT INSTALLATION
The window kit has been designed to fit most standard vertical and horizontal windows. However, it may be necessary to modify the installation procedures to accommodate your window. Please refer to Fig. 3a and Fig. 3bfor minimum and maximum window openings. If your window opening is less than the mentioned minimum length of the window slider kit, the window slider kit can be cut to fit the window opening. Never cut into the exhaust hose cut-out on the window slider kit.
If your window opening is larger than the maximum length of the window slider kit, additional material will be needed to cover the open space such as, Plexiglas, PVC plastic, ply wood, etc. Alternately, an additional window slider kit can be purchased to be used in combination with the included kit.

NOTE: When using the window slider kit on a window or sliding door, additional security measures may be needed. The window slide bars can be fixed with the clear plastic bolt. Fig. 4.

WINDOW KIT INSTALLATION IN A DOUBLE-HUNG WINDOW

Open window or sliding door for approximately 5”
Cut the foam seal A and B (adhesive type) to the proper length and attach it to the bottom of the window. Fig. 5a.
Adjust the length of the window slide bars to the same length and width of the opening of the window. Cut the window piece if necessary to fit the length of your window. Never cut into the exhaust hose cut-out on the window slider kit. Fig. 5b.
Close the window on the window slide bars. For long term installation, you may screw the window kit into your window frame using the security bracket. Fig. 5c.
Cut the foam seal C (non-adhesive) to the length and seal the open gap between the top window sash and outer windows ash. Fig. 5d.

WINDOW KIT INSTALLATION IN A SLIDING WINDOW/DOOR

Open window or sliding door for approximately 5”
Cut the foam seal (adhesive type) to the proper length and attach it to the bot-tom of the door / window. Fig. 6a.
Adjust the length of the window bars to the same length and width of the opening of the window. Cut the window piece if necessary to fit the length of your window. Never cut into the exhaust hose cut-out on the window slider kit. Fig. 6b.
Close the door/ window on the window slide bars. For long term installation, you may screw the window kit into your window frame using the security bracket. Fig. 6c.
Cut the foam seal C (non-adhesive) to the length and seal the open gap between the top window sash and outer windows ash. Fig. 6d.

EXHAUST AND INTAKE HOSE INSTALLATION TO THE WINDOW KIT

Make sure that window slider kit is securely installed.
Move the unit to the window, extend the exhaust hose, align the hose connector and snap it into the window kit.

BEFORE USING YOUR APPLIANCE

Remove the exterior and interior packing
Before connecting the appliance to the power source, let it stand upright for approximately 4 hours. This will reduce the possibility of a malfunction in the cooling system from handling during transportation

SWITCHING ON/OFF THE AIR CONDITIONER
The appliance can be switched ON or OFF by pressing the POWER button on the control panel or the ON/OFF but-ton on the remote control

COOLING MODE
In this mode, the air conditioner cools and dehumidifies the room. To activate this function mode, press the MODE button until the COOL indicator light is displayed. When the cooling mode is set, the compressor will start in ap- proximately 3 minutes. In cooling mode, hot air is exhausted from the outdoor exhaust port and the exhaust hose must be connected to exhaust out the hot air. The temperature setting range of this air conditioner is from 62°F / 17°C to 88°F / 30°C. To set the temperature, press the + or – buttons. This air conditioner has a 5°F temperature cushion which if the set temperature is within 5°F of the ambient temperature, the unit runs in fan only mode. This saves energy and prolongs the life of the compressor of the air conditioner. To set the fan speed, press the FAN button. In cooling mode, the difference in noise level between the 3 fan speeds is not very noticeable when the compressor is on. Try setting the unit to Fan only mode, you should be able to hear the difference between high and low fan speed settings.

DRY (DEHUMIDIFYING) ONLY MODE
In this mode, the air conditioner only dehumidifies the room, the compressor will activate intermittently depending on the ambient temperature and the fan speed is set to LOW. To activate this function mode, press the MODE button until the DRY indicator light is displayed. Please note that when switching function mode, there will be an approximately 3 minute transition time. In dehumidifying mode, the exhaust hose does not need to be vented. If the exhaust hose is vented, the room will be cooled as it dehumidifies. To prevent cooling, remove the exhaust hose from the window kit and allow the warm air from the rear to be re-circulated into the room. If room temperature is higher than 77°F, the fan speed can be adjusted. If room temperature is lower than 77°F, the fan speed is set at Low.

NOTE: When using dehumidifying mode, venting the exhaust hose to the outside is not required. If vented, the warm air is exhausted to the outside and cooling within the room may occur. Additionally, if the exhaust hose is not vented, the unit may require more frequent draining. Also, the air conditioner does not have a humidistat in which a specific humidity level can be set.

AUTOMATIC MODE
When you set the air conditioner in AUTO mode, it will automatically select cooling or fan only operation depending on the temperature of the room. The fan speed is automatically selected and cannot be changed. To operate the unit in Auto mode when the unit is on, press the MODE button until the AUTO indicator light comes on.

HEAT MODE
In this mode, the air conditioner heats the room. To activate this function mode, press the Mode Control button until the HEAT indicator comes on. When the heating mode is set, the compressor will start in approximately 3-5 minutes; the rear fan will start first, followed by the compressor then the air output fan into the room. It may take several minutes heat to blow from the front air output vent.

•In heating mode, cold air is exhausted from the outdoor exhaust port and the exhaust hose must be connected to exhaust out the cold air.
•The temperature setting range is from 61F to 77F. To set the temperature, press the + or – buttons. Once the set temperature is achieved, the compressor and the fan will stop.
•To set the fan speed, press the Fan Speed button. In heating mode, the difference in noise level between the 3fan speeds is not very noticeable when the compressor is on. Try setting the unit to Fan only mode, you shouldbe able to hear the difference between high and low fan speed settings.

NOTE: This unit uses heat pump from heating and the heating mode does not work when temperature is below45F.

FAN ONLY MODE
In this mode, only the fan of the air conditioner runs and circulates the air in the room. To activate this function mode, press the MODE button until the FAN indicator light comes on. In this function mode, the temperature cannot be set. Subsequently, set the desired fan speed by pressing the FAN button. When using FAN only mode, venting the exhaust hose to the outside is optional.

TIMER (DELAYED SWITCH ON / OFF) FUNCTION
This function mode enables a delayed switch ON or delayed switch OFF of the air conditioner. The time (hours) de-lay can be set, enabled and disabled.

SETTING SWITCH OFF TIMER
With the air conditioner operating in any function mode, press the TIMER button. The TIMER OFF light will come on. Then set the desired time delay OFF hours by pressing the UP and DOWN buttons. The time increments are at 0.5 hour to up to 10 hours, followed by 1 hour increment up to 24 hours. When the delay time set has elapsed, the air conditioner switches off. To cancel the delayed switch off function, turn off the air conditioner or adjust the time set-ting to 0.0.

SETTING DELAYED SWITCH ON TIMER
With the air conditioner is off, press the TIMER button. The TIMER ON light will come on. Then set the desired time delay ON hours by pressing the UP and DOW N buttons. The time increments are at 0.5 hour to up to 10 hours, followed by 1 hour increment up to 24 hours. When the delay time set has elapsed, the air conditioner switches on. To cancel the delayed switch on function, turn on the air conditioner or adjust the time setting to 0.0.

SLEEP MODE
In this mode, the air conditioner gradually increases the set temperature in cooling mode, decreases the noise level and conserves energy. In Economy and cooling mode, the set temperature is increased by 1°C/ 2°F in the first 30 minutes. The temperature will then increase by another 1°C/ 2°F after an additional 30 minutes. This new temperature will remain the same for 7 hours. To activate this function mode, press the SLEEP button until the SLEEP indicator light comes on.

AUTO RESTART
In the event of a power outage, the air conditioner restarts at the previously set function mode and settings when power is restored.

CONTROLLING THE AIR FLOW DIRECTION
The louvers can be controlled to Auto-Swing or in a fixed direction. To control the air flow direction by Auto-Swing, press the SWING button. To set the louvers in a fixed angle or direction, press SWING button while on Auto- Swing mode when desired angle is chosen.

NOISE LEVEL
Portable air conditioners may make sounds that are not familiar to you. The sounds listed below are normal. Noise reflecting off hard surfaces such as a floor or wall can make the sounds seem louder than they actually are.

The compressor may make a pulsating or high-pitched sound
Water running from the evaporator to the water tank may make a splashing sound
Refrigerant flowing may make a gurgling sound
Fan sound may come from front and back air vents

COMPRESSOR LOCK OUT
This portable air conditioner is optimized to operate in an ambient temperature of 64°F – 90°F. The compressor circuit has an automatic 3 minute time delayed start if the unit is turned off and on quickly. This prevents over-heating of the compressor and possible circuit breaker tripping.

SHORTCUT FUNCTION
Push this button when remote controller is on, the system will automatically revert back to the previous settings including operating mode, setting temperature, fan speed level and sleep feature (if activated). If shortcut button is pushed for more than 2 seconds, the system will automatically store the current operation settings including operating mode, setting temperature, fan speed level and sleep feature (if activated).

REMOTE CONTROL

The portable air conditioner can be switched on by the remote control. To transmit signals from the remote control to the air conditioner, point the front part of the remote handset towards the control panel on the air conditioner. Reception of the signal is confirmed by a beep. The maximum signal transmission distance is approximately 8 meters / 26 feet.

NOTE:

Other appliances in the same room controlled by a remote control (TV, radio, stereo, etc.), may cause interferences
Electronic and fluorescent lamps may interfere with the signal transmissions between the remote control and the air conditioner
Remove the batteries if the remote control is not used for long periods

INSTALLING BATTERIES
To insert the batteries, open the flap on the back of the remote control by sliding if off. Strictly adhere to the polarity signs on the bottom of the battery housing, close the flap once the batteries have been inserted.

Only use two dry LR03 AAA 1.5V Batteries (included) in the remote control
Always change both batteries at the same time

| INDICATOR| FUNCTION
---|---|---
1 – Mode Indicator| Displays the current selected mode

(Auto, Cool, Dry, Heat or Fan)

2 – Transmission Indi-

cator

| Displays when remote sends signal to

unit

3 – ON/OFF Display| Displays when the unit is turned on, and

disappears when it is turned off

4 – Timer On Indicator| Displays when TIMER ON is set
5 – Timer Off Indicator| Displays when TIMER OFF is set
6 – Battery Indicator| Displays battery life status
7 – Temperature/Timer display| Displays the set temperature by default, or timer setting when using TIMER ON/

OFF functions

8 – Sleep Display| Displays when SLEEP function is activat-

ed

9 – Fan Speed Display| Displays selected Fan speed. This display

is blank when set to AUTO speed.

22 – Follow Me| Displays when Follow Me option is on
|
BUTTONS| FUNCTION
10 – On/Off Button| Turns the unit On and Off

11 – Mode Button

| Controls the 4 function modes: Auto, Cool, Dry, Heat & Fan
12 – Fan Speed Button| Controls the fan speeds: High, Medium,

Low or Auto

13 – Sleep Button| Enables Sleep mode
14 – Swing Button| Starts or stops louver movement and set louver angle.
15 – LED Display But-

ton

| Turns on and off the display light
16 – Up Button| Increases set temperature/time
17 – Down Button| Decreases set temperature/time
18 – Shortcut Button| Restore the current settings or resume

previous settings

19 – Timer On Button| Enables the Timer On
20 – Timer Off Button| Enables the Timer Off
21 – Follow me Button| Temperature sensing button and room temperature display buttom

CARE AND MAINTENANCE

IMPORTANT:

Switch off the air conditioner and disconnect the plug from the power outlet
Drain water by removing the drain plug and always transport the air conditioner in an upright position only

CLEANING THE AIR FILTERS

To ensure the air intake is filtered properly and to assure that your air conditioner runs efficiently, it is recommended to clean the air filters at least once every two weeks
This unit has three air filters; the Silver shield pre-filter, 3Mfilter and the lower air filter
Switch off the air conditioner and remove the Silver shield pre-filter and 3M filter from the unit (Fig. 7a and Fig. 7b)
Remove the lower filter by loosening the screw and taking down the air inlet grille. (Fig. 7a)
Use a vacuum cleaner or tap lightly to remove loose dust and dirt from the filters. Then rinse them thoroughly under warm or cold running water (no hotter than 100F.)
Dry thoroughly before re-inserting the filters. (Fig. 7c)

NOTE: Silver shield pre-filter is washable and does not need to be replaced. The 3M should be replaced every 2-3 months depending on usage. Please contact support@whynter.com for retail sales information

WARNING: Never operate the air conditioner without the filter in place

CLEANING THE AIR CONDITIONER

Always switch off the air conditioner and disconnect the plug from the power supply outlet before cleaning the air conditioner
Use a soft damp cloth to wipe the body of the unit.
Never use harsh chemicals, oil-based products, deter-gents, chemically treated cloths or other cleaning solutions. These could possibly damage the body of the air condition-er

END OF SEASON STORAGE

Switch off the air conditioner and disconnect the power plug from the power supply outlet before cleaning the air conditioner
To remove the hose from the unit, the easiest way is to remove take out the hose and leave the connector in place.
Clean the air filters
Drain the condensed water completely
On a warm day, turn on the Fan only mode for half a day so that the inside can dry out completely
Remove the batteries from the remote controller
Wrap the cord using the Power Cord Buckle and insert the plug into the Power Plug Socket. (Fig. 7d)

TROUBLESHOOTING

Many common portable air conditioner problems are easily resolved. Try the troubleshooting suggestions below to see if the problems can be resolved before having to contact the service department.

Problem

|

Possible Causes

|

Solutions

---|---|---
The portable air conditioner does not turn on|

Power failure / outage
The automatic switch, line fuse, or breaker has been tripped
The power supply voltage is too low
The power cord is damaged
The L.C.D.I. power plug for the unit is tripped
The internal water reservoir is full and ‘P1” appears on display

|

Restore the power supply
Flip the switch / change the fuse / turn the breaker back on. Also note that you may have too many appliances drawing power on one circuit, you may need to move the other appliances to another circuit
Move the unit onto another circuit with the correct voltage
Call for service. Only authorized per- sonnel should replace damaged pow- er cord or power plug
Press the Reset button on the L.C.D.I. power plug
Drain water from the air conditioner
Possible loose internal connection. Please contact Whynter for service

The unit turns on but the com- pressor does not turn on (the fan runs but the unit is not cooling)|

The room temperature is outside of the operational tolerances of the unit
The Cooling mode is not on
The compressor has not turned on yet because of its time delay
The set temperature is too high
The internal water reservoir is full and ‘P1” appears on display

|

This unit is designed to work in ambi- ent temperatures of 63°F to 90°F
Press the MODE button until the COOL light is shown on the display
Give the compressor 3 minutes to turn on after the Cooling mode has been select
Set the air conditioner to a lower tem-perature. It is recommended to set the temperature to at least 5°F of the am- bient temperature
Either manually drain the water by removing the drain plug or allow the unit to exhaust the water itself by run- ning the fan only mode. Then cooling will resume
Possible loose internal connection.

Please contact Whynter for service

The air coming out of the unit is not very cold, or the airflow volume is weak|

The filters are dirty or obstructed
The air intake or exhaust is ob- structed
The unit is set in DRY or FAN mode
The unit is set to low fan speed

|

Clean the air filters
Make sure there is at least 20″ of clearance from the air intake. Make the length of the exhaust hose is as short as possible
Set the unit to the cooling mode
Set the unit to a higher fan speed

Problem	Possible Causes	Solutions
The unit has worked for a long time, but the room is not cold enough

Windows or doors are open
There are too many people in the room
There is direct sunshine into the room
The room is a kitchen or with many heat-producing appliances
There is a server in the room
The room is too large

|

Close all windows and doors
You may need additional cooling or another air conditioner
Close curtains or blinds and try to min- imize the amount of direct sunlight into the room
Turn the unit on early instead of waiting until the hottest point of the day
You may need additional cooling or another air conditioner

The unit is very noisy|

The unit is not level
The surface underneath the unit is uneven
Low power voltage

|

Make sure the unit is on hard, level and stable surface
Move the unit to a location with a level and hard floor
Make sure the wall outlet and support the required power consumption of the air conditioner and do not use an ex- tension cord

The unit leaks water|

The unit is tilted or not leveled
The water tank is full

|

Make use the unit is leveled
Drain water from the drain plug at the back of the air conditioner

Fan speed cannot be changed|

Fan speed differences are not very noticeable

|

The fan speed difference is not very noticeable when the compressor is on. Try setting the unit to Fan only mode, you should be able to hear the differ- ence between high and low fan speed settings.