Haier YR-H 71 Service Manual page 28

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4. Diagnostic code display
Failure description
Room temp. sensor abnormal
Indoor coil temp. sensor abnormal
Outdoor temp. sensor abnormal
Outdoor coil temp. sensor abnormal
Over-current malfunction
High / Low pressure abnormal
Communication malfunction between indoor and wired controller
Communication malfunction between indoor and outdoor abnormal
Drainage system malfunction
N/A
Coil gas pipe temp. Sensor abnormal
Temperature protection malfunction
Indoor EEPROM abnormal
Code on wired controller
01
02
4A
49
48
53
07
06
08
0B
03
0D
05
28