Haier AC142ACBHA Operation Manual page 10

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?
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?
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.
8
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?