Troubleshooting - Haier AC12CS1ERA Operation Manual

Troubleshooting

Followings are not problems
Sound of water flowing is not a problem.
Sound of cracking is heard.
Smell are generated.
During operation, white fog or steam
comes out from the indoor unit.
In cooling operation, unit switches to
blowing operation.
Unit will not restart after stop.
Won't start?
No outlet air or fan speed can't be changed
in dry mode.
In heating operation, water or steam
are blown out of outdoor unit.
In heating operation, indoor fan won't stop
even if unit is stopped.
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)?
During unit operation or at stop, a swishing or gurgling noise may be heard.
This noise is generated by refrigerant flowing in the system.
During unit operation, a cracking noise may be heard.
This noise is generated by the casing expanding or shrinking because of
temperature changes.
This is because the system circulates smells from the interior air such as
the smell of cigarettes or the painting on the furniture.
When unit is running at places like restaurant, etc. where dense edible oil
fumes always exist, this will happen.
To prevent frost from accumulating on indoor heat exchanger, unit will switch
to blowing operation for a while then resume cooling operation.
Though ON/OFF button is set to ON,
resume cooling, dry or heating operation in 3 min
after it is stopped, this is because of
3-min-delay protection circuit.
Unit will reduce fan speed repeatedly and automatically if room temp. is
too low in dry operation.
This occurs when frost accumulated on the outdoor unit is removed (during
defrosting operation).
After unit stop, indoor fan will go on running until indoor unit cools down.
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?
9
the unit won't
Please wait 3 minutes
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?