Haier HCFU-42HF03 用户手册

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.