Trouble Shooting - Haier HCFU-42CF03 Operation And Installation Manual

Trouble Shooting

Before ask for services, please first check your unit against the following.
Is power supply switch
turned on?
Power supply switch
is not set at ON.
Are operation control
adjusted correctly
as specified?
Proper
temp
Are horizontal louvers at up
position (in heating mode)?
Is there any direct sunlight
in the room?
Cold air blows out
(in heating mode)
Is air conditioner in standby
condition in heating mode?
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.
Failure description
Room temp. sensor abnormal
Indoor coil temp. sensor abnormal
Outdoor temp. sensor abnormal
Outdoor coil temp. sensor abnormal
Over-current malfunction
High / Low pressure abnormal or Comp. discharging protection malfunction
Communication malfunction between indoor and wired controller
Communication malfunction between indoor and outdoor abnormal
Temperature protection malfunction
Air conditioner won't start.
Is city power supply normal?
Power
failure?
Poor cooling or heating
Is air filter too dirty?
Any doors or windows left
open?
Poor cooling
If there are unexpected heat
sources in the room?
26
Is leakage current breaker
activated?
This is very dangerous, please
disconnect power supply
immediately and contact your
dealer.
Are there any obstacles in inlet
or outlet grill?
Too many people in the room?
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
Power LED flashes 13 times