Haier AB422BCBAA User Manual - When Troubles Occur
When Troubles Occur
Before contacting the commissioned repair center for after-sales service, please check your
air conditioner according to the following items.
Trouble display
The compressor indicator light flashes 1 time
in 0.2S/time frequency
Phenomenon of outdoor unit trouble
The trouble of outdoor ambient temperature sensor
The trouble of outdoor coil temperature sensor
The outdoor discharging air temperature is too high
Over electric current protection
CT wire breaks
The flashing time of indicator light on
outdoor control panel
1 (A, B systems indicate together)
Detection of abnormal phase sequence
Trouble indication on remote control
type indoor unit
The communication trouble between indoor and
outdoor unit
The protection of too high (too low) pressure
Phenomenon of indoor unit trouble
2 (A and B system indicate individually)
3 (A and B system indicate individually)
4 (A and B system indicate individually)
5 (A and B system indicate individually)
Symptom
Cause
Solution
The unit does not
operate.
The fuse is blown out or the breaker
is open.
Change the fuse or close the
breaker.
Once the unit operates, it
stops immediately.
The air inlet or air outlet of indoor
or outdoor unit is blocked.
Remove the obstacles.
A b n o r m a l o f
C O O L I N G o r
HEATING.
The air inlet or air outlet of indoor
or outdoor unit is blocked.
Remove the obstacles.
Improper set temperature
Referring to page 8
The fan speed is set too low
Referring to page 8
Incorrect swing direction
Referring to page 9
The doors or windows are open
Close them
Direct sunshine
Hang the curtain or blinds before
windows
Too much people in room
Too many heat sources in room
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COOLING
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COOLING
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The trouble of outdoor discharging air temperature
sensor
The trouble of indoor ambient temperature sensor
The trouble of indoor coil temperature sensor
The trouble of outdoor ambient temperature sensor
The trouble of outdoor coil temperature sensor
The trouble of electric current overload
Over voltage protection
Excessive and lack voltage protection
The communication trouble between panel and indoor
panel
The communication trouble between indoor panel and
outdoor panel
The trouble of water pump
6 (A and B system indicate individually)
7 (A and B system indicate together)
8 (A and B system indicate individually)
9 (A and B system indicate individually)
20
The compressor indicator light flashes 2 time
in 0.2S/time frequency
The compressor indicator light flashes 9 time
in 0.2S/time frequency
The compressor indicator light flashes 8 time
in 0.2S/time frequency
The compressor indicator light flashes 7 time
in 0.2S/time frequency
The compressor indicator light flashes 6 time
in 0.2S/time frequency
The compressor indicator light flashes 5 time
in 0.2S/time frequency
The compressor indicator light flashes 4 time
in 0.2S/time frequency
The compressor indicator light flashes 3 time
in 0.2S/time frequency
The compressor indicator light flashes 10 time
in 0.2S/time frequency
*
COOLING
*