Troubleshooting - Haier AB072FDAHA Instruction Manual

Trouble Shooting
Check the following before entrusting any after service.
Presentation
Sound of flowing water
"click" sounds
Blowing with smell
Running indicator flashes
Displays shows ìstand byî
Sounds, white vapor or cool
air during stopping of indoor
unit
Clickî sound while switch-
ing on power of the machine
The machine runs or stops
automatically
The machine cannot run
Poor heating or cooling effect
Stop running immediately, disconnect manual power switch, and consult after service in the following case:
Poor response to button pressing
Machine still cannot run other than reason of protection setting
Fuse and electric leakage breaker keep on being blown
Sundries or water enters inside of electric box
Other abnormal case
Sound of flowing water during start, running and short while after stoppage.
Sometimes the sound increases 2-3 minutes after start, it is made by flowing
refrigerant and discharging of condensate water.
Sometimes the machine makes ìclickî sound during operation because of
changing operation and slight shrinkage of heat exchanger etc.
Due to adherence of smell given off by wall, carpet, furniture, clothes, ciga-
rette and cosmetic etc. to air-conditioner.
Indicator flashes when turning on manual power switch after the machine is
reenergized after a power failure.
The machine cannot run cooling model as other indoor unit running heating
mode.
It is displayed when desired operation mode is different with fixed mode that
might be set by air-conditioner controller.
To prevent oil or refrigerant detaining in indoor unit being stopped, refriger-
ant flows in short while and makes sounds like ìSha-ì or ìcola-î. In addition,
white vapor sometime comes out when other indoor units are running heating
program while cool air comes if others running cooling program.
Sound made by reset eletronic of expansion valve in switching on of the
power.
Check whether status of ìtimed power onî or ìtimed power offî has been set.
Whether thereís a power failure?
Whether manual power switch is off?
Whether power fuse blows or breaker is off?
Whether protection setting works (running indicator lights)?
Whether timing function works (running indicator lights)?
Whether heating and cooling are selected at the same time (circuit controller
displays ìstand byî)?
Whether inlet and outlet of outdoor unit is blocked?
Whether doors and windows are open?
Whether any dirt or dust obstructs air filter screen?
Whether blowing rate is set to ìslightî, ìlowî? Operation is set to ìblowingî
mode?
Whether temperature is set properly?
20
Reason