The appliance has a self diagnosis system to identify a number of malfunctions. Error messages are displayed on the appliance display.
What should I do?
If you displayed LE, Low Temperature (frost prevention) The appliance is fitted with a frost protection device to avoid excessive formation of ice. The appliance start up again automatically when the defrosting process is completed.
If you displayed PF, Probe Failure (sensor damaged) If this is displayed, contact your local authorised service centre.
If you displayed FE, Full Tank (safety tank full) Empty the internal safety tank, following the instructions in the ''End of season operations'' paragraph.
Troubleshoot your problem by using the chart below. If the air conditioner still does not work properly, contact W Appliance Co. customer service center or the nearest authorized service center. Customers must never troubleshoot internal components.
Trouble: Unit does not start when pressing ON/OFF button
FT appears in the display window
Room temperature is lower than set temperature (cooling mode)
Drain the water in the bottom tray
Reset the temperature
Trouble: Not cool enough
The windows or doors in the room are not closed
There are heat sources inside the room
Exhaust air duct is not connected or blocked
Temperature setting is too high
Air filter is blocked by dust
The unit will take approx 3 minutes of operation before cooling/heating occurs.
Make sure all the windows and doors are closed
Remove the heat sources if possible
Connect the duct and make sure it can function properly
Decrease the set temperature
Clean the air filter
A mircoprocessor control delays the compressor from operating until 3 mins have passed.
Trouble: Noisy or vibration
Possible Cause: The surface is not level or not flat enough
Possible Remedy: Place the unit on a flat, level surface if possible
Trouble: Gurgling sound
Possible Cause: The sound comes from the flowing of the refrigerant inside the air-conditioner
Possible Remedy: It is normal
Trouble: Unit stops operating
Possible Cause: LT appears in display window
Possible Remedy: Unit is in defrost mode and will restart automatically once excess frost has been removed.
Water Drainage Method
This air conditioner is equipped with the very latest MIST technology which means the water tank nearly never fills, hence water drainage will generally only be required at the end of the season (see START-END OF SEASON OPERATIONS in page 19. However the MIST technology does not operate when the unit is in HEAT mode. Thus the tank may still require emptying in HEAT mode.
NOTE: As a safety measure to positively prevent water spillage the air conditioner is equipped with a fail safe device if the water tank fills. The unit will completely stop, the control panel displays ft (FULL TANK) as mentioned on SELF DIAGNOSIS in page 17. The compressor and fan will not restart until the tank has been drained.
Cleaning The Filters
To keep your air conditioner working efficiently, you should clean the filters every week of operation. The evaporator filter can be removed as shown in Fig. 12.
The condenser filter is two pieces.
STEP 1: Take out one filter as shown in Fig. 13.
STEP 2: Take out other filter as shown in Fig. 14 and Fig. 15.
Use a vacuum cleaner to remove dust accumulations from the filters. If it is very dirty, immerse in warm water and rinse a number of times. The water should be luke warm. After washing, leave the filters to dry then re-insert.
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