13
TROUBLESHOOTING TIPS
Troubleshooting Tips
Malfunctions
Unit does not
start
Unit not cooling
or heating (for
cooling and
heating model)
room very well
while air flowing
out from the air
conditioner
Cause
Power cut
Unit may have become unplugged
Fuse may have blown
Battery in Remote controller may
have been exhausted (flat batteries)
The time you have set with timer
is incorrect
Wait for power to be restored
Check that plug is securely in wall
receptacle
Replace the fuse
Replace the battery
Wait or cancel timer setting
Set temperature correctly. For
detailed method please refer to the
‘Remote Control Manual’ booklet.
Clean the air filters
Close the doors or windows
Clear obstructions away first, then
restart the unit
Wait
Inappropriate temperature setting
Air filter is blocked
Doors or windows are open
Air inlet or outlet of indoor or
outdoor unit has been blocked
Compressor 3 minutes
protection has been activated
If the trouble has not been fixed, please contact a local dealer or the nearest customer service
center. Be sure to inform them in detailed of the malfunctions and your unit’s model number.
NOTE: DO NOT ATTEMPT TO REPAIR THE UNIT YOURSELF
ALWAYS CONSULT AN AUTHORISED SERVICE PROVIDER
HAVE THE CORRECTLY SIZED AIR CONDITIONER INSTALLED
What should be done?
8. Dripping water may generate on the surface of the indoor unit when cooling in a high
relatively humidity (relative humidity higher than 80%). Adjust the horizontal louver to
the maximum air outlet position and select HIGH fan speed.
9. Heating mode (for cooling and heating models only)
The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit
during heating operation. When the outdoor temperature falls, heat drawn in by the air
conditioner decreases accordingly. At the same time, heat loading of the air conditioner
increases due to larger difference between indoor and outdoor temperature. It’s crucial to
have the correctly sized air conditioner installed for the room. If a comfortable temperature
can't be achieved by the air conditioner, we suggest you use a supplementary heating device.
10. AUTO-RESTART Function
Power failure during operation will stop the unit completely.
For the unit without AUTO-RESTART Feature, when the power restores, the OPERATION
indicator on the indoor unit starts flashing. To restart the operation, push the ON/OFF button
on the remote control. For the unit with AUTO-RESTART Feature, when the power restores,
the unit restarts automatically with all the previous settings preserved by the memory function.
11. Lightning or a wireless telephone operating nearby may cause the unit to malfunction.
Disconnect the unit from the power supply and then re-connect the unit with power again.
Push the ON/OFF button on the remote control to restart operation.
12. If you are switching on or turning off the unit, and suddenly there is a power cut, the front panel
or louver is not yet opened or closed, do not attempt to press with force to make them close fully.
When power is restored the front panel or louver will open or close automatically. Please refer to
illustrations below.
OPERATION TIPS
14
If one of the following faults occurs, stop the air conditioner immediately, disconnect the power
and then connect it. If the problem still persists, disconnect the power and contact the nearest
customer service center:
Fuse blows frequently or circuit breaker trips frequently.
Other objects or water fall into the air conditioner.
The remote controller won't work or works abnormally.
Problem
OPERATION indicator or other indicators continue flashing.
If one of the following code appears on the display area:
E0, E1, E2, E3, E5.....or EC.....or F1, F2, F3, F4, F5.....or P0, P1, P2, P4......
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