Haier AB422XCBAA Service Manual page 156

11. Failure code and troubleshooting
11.1 Free multi outdoor unit fault code:
Outdoor lamp flash times
1
2
3
4
5
6
7
9
10
11
13
15
Fault code
Discharging A pipe temp. too high
Outdoor coil A temp. sensor failure
Outdoor ambient temp. sensor failure
Air outlet A temp. sensor failure
Outdoor coil B temp. sensor failure
Air outlet B temp. sensor failure
Discharging B pipe temp. too high
Low pressure malfunction
Communication failure between indoor and outdoor
Overcurrent protection
High pressure malfunction
EEPROM failure
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