Haier AB422XCBAA Service Manual page 157

11.2 For wall mounted type and the console type unit, their failure code is below:
Failure description
Room temp. sensor abnormal
Indoor coil temp. sensor abnormal (liquid pipe)
Refrigerant system abnormal
Indoor coil temp. sensor abnormal (gas pipe)
High pressure abnormal (outdoor)
⊙
Drainage abnormal
Communication between indoor and wired controller
Indoor fan motor abnormal (up)
Indoor fan motor abnormal (down)
3 phase abnormal
Low pressure abnormal (outdoor)
Communication between indoor and outdoor abnormal
Compressor overheat
CT current abnormal
Outdoor ambient temp. sensor abnormal
Outdoor coil pipe temp. sensor abnormal
Outdoor suction temp. sensor abnormal
Abnormal modes running
Outdoor discharging temp. sensor abnormal
Indoor EEPROM abnormal
Note: Resumable failures are marked with " ⊙ ", the others are not resumable failures.
Resumable failure will disappear when the failure is eliminated and its failure code will
disappear automatically within 30 seconds. But the other failure code will disappear only
after the unit starts up once again.
When failure occurs, the unit only can receive "OFF" signal from the controller. And when
the unit is shut off, the failure code will disappear.
⊙
⊙
⊙
⊙
⊙
⊙
⊙
⊙
⊙
Flash times of indoor receiver
Code on wired
board
controller
(YR-E06)
F1 Power LED flashes 1 time
F2 Power LED flashes 2 times
F3 Power LED flashes 3 times
F4 Power LED flashes 4 times
F5 Power LED flashes 5 times
F6 Power LED flashes 6 times
F7 Power LED flashes 7 times
Power LED flashes 8 times
Power LED flashes 9 times
E1 Running LED flashes once
E2 Running LED flashes twice
⊙ E3 Running LED flashes 3 times
E4 Running LED flashes 4 times
E5 Running LED flashes 5 times
E6 Running LED flashes 6 times
E7 Running LED flashes 7 times
EA Running LED flashes 10 times
EC Running LED flashes 11 times
ED Running LED flashes 12 times
EE Running LED flashes 14 times
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