Haier AW052MUCHA Installation Manual page 35

Failure code
CODE
51-0
51-2
52-0 LEVa open circuit disconnection failure
52-2 LEVb open circuit disconnection failure
53 Too low CT electric current or electric sensor failure
54 Communication failure with subcooling module
Communication failure between subcooling module and upper unit
57
Temp. sensor(Tc1)failure of subcooling module(send from subcooling
58
Temp. sensor(Tc2)failure of subcooling module(send from subcooling
59
60 Subcooling module failure(send from subcooling module)
61 Subcooling module failure(send from subcooling module)
62 Subcooling module failure(send from subcooling module)
63 Subcooling module dialing setting failure
64
68 Communication failure with hot water IO board
69 Tank temp failure of hot water IO board
70
71-0
71-1
74
81
82
83 Outdoor unit model dialing setting failure
87
110
111
112
114
116 Communication abnormity between transducer and control PCB
117
118
119 Current detecting circuit abnormity of transducer
121
122 Power supply of inverter board is abnormity
124
Error code definition
LEVa overcurrent protection
LEVb overcurrent protection
(send from subcooling module)
module)
module)
Too high CT electric current
Other failures of hot water IO board
Upper DC FAN failure
Lower DC FAN failure
System emergency stop failure
Radiator of transducer temp too high
Compressor current protection
Defrosting with too low water temp
Module hardware excess current
Compressor out of step
Radiator of transducer temp too high
Supply voltage failure of inverter
Transducer over current (software)
Compressor startup failure
Module power supply abnormity
Radiator temp. sensor abnormity
Locking after three consecutive times in
an hour, unrecoverable after locking
29
Notes
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Unrecoverable
Unrecoverable after locking
Recoverable
Recoverable
Recoverable
Unrecoverable after locking
Recoverable
Unrecoverable after locking
Unrecoverable after locking
Unrecoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable
Recoverable