haier AU422BIBAA - Manual (Page 15)

Troubleshooting
Symptom Cause
Blow out mist or water
overflow The fan motor of outdoor unit automatically stop to
perform defrosting.
* During operation, in operation and shortly after unit
stop, there is a sound of water flow; within 2~3
minutes after operation start, sometimes the sound
becomes larger, this is the sound of refrigerant flowing
and drainage of condensate water.
During operation, the air conditioner gives out the
sound of ìPu Chiî, it is because of the temperature
change, the sound of heat exchangerís hot expansion
and cold shrink.
Giving out noise
Not get the needed
C O O L I N G o r
HEATING effect
Auto operation, stop
Not operate
If set in ìTIMER ONî or ìTIMER OFFî mode.
If the air outlet and inlet of the outdoor unit are blocked.
(please cut off power, remove the obstacle)
If doors and windows are closed. (close doors and
windows)
If there is too much dust on the indoor air filter. (please
cut off power to clean the air filter)
If the position of the air outlet louver of the indoor unit
is suitable. (adjust the position of the louver)
If exceeding the operation range of the air conditioner.
If set in ìHEATINGî, ìCOOLINGî, ìFANî mode.
If the set temperature correct.
If the set fan speed is low.
Before contact the repair center, please check the following circumstances
If because of power failure leading to unit stop.
If the power switch is cut off. (close the power switch)
If the fuse or breaker is burnt out. (please perform by
the qualified electrician)
If the protection device acts. (the state of the operation
indicator light of the wire controller) according to the
instruction of the troubleshooting to check the cause.
Not get the needed
C O O L I N G o r
HEATING effect
.
Not trouble
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Circumstances needing to further confirmation
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When the following circumstances occur, please stop the unit and cut off
power, then contact the after-sales service center.
Bad action of button.
When fuse and breaker often blown out.
Alien articles and water enter into electric box.
Exclude the cause of protection device (refer to page 12), the unit still
cannot operate.
Other abnormal circumstances.
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