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Before ask for services, please first check your unit against the following.
Air conditioner won't start.
Poor cooling or heating
Is power supply switch
turned on?
Power supply switch
is not set at ON.
Is city power supply normal? Is leakage current breaker
activated?
This is very dangerous, please
disconnect power supply
immediately and contact your
dealer.
Are operation control
adjusted correctly
as specified?
Is air filter too dirty?
Are there any obstacles in inlet
or outlet grill?
Are horizontal louvers at up
position (in heating mode)?
Any doors or windows left
open?
Is there any direct sunlight
in the room?
If there are unexpected heat
sources in the room?
Too many people in the room?
Poor cooling
Is air conditioner in standby
condition in heating mode?
Cold air blows out
(in heating mode)
Trouble Shooting
Proper
temp
Power
failure?
Failure description
Room temp. sensor abnormal
Indoor coil temp. sensor abnormal
Outdoor coil temp. sensor abnormal
Over-current malfunction
Communication malfunction between indoor and wired controller
Communication malfunction between indoor and outdoor abnormal
Flash times of indoor
receiver board
Power LED flashes 1 time
Power LED flashes 2 times
Power LED flashes 3 times
Power LED flashes 4 times
Power LED flashes 5 times
Power LED flashes 16 times
Power LED flashes 8 times
Power LED flashes 9 times
Outdoor temp. sensor abnormal
High / Low pressure abnormal or Comp. discharging protection malfunction
Temperature protection malfunction
Power LED flashes 13 times
If your unit still can't work properly after above mentioned checks, or following problems occur,
please stop it immediately and contact your dealer.
Fuses or circuit breakers often blow out.
Water comes out in cooling/dry operation.
Operation is abnormal or sound is heard.