Error Code - Haier AU082FYCRA(HW) Service Manual

20. Error Code

Error code
1
2
3
4 Out refrigerant temp.sensor(Tho) failure
7 Communication fault with wired controller
10
15
16 Heat exchange unir HU in/out water remp. too high
20
21
22
23
28
29
30
34 Discharging temp. too high protection(Td)
35
38
39 Low pressure too low(Ps)/compres-sion ratio too high protection
40
43 Discharging temp. too high protection(Td)
46 Discharging communication fault with IGBT Power Moudule
71
75 High-low differential pressure too small/no differential pressure
82
83
110
111
117
When the screen of wire controller display hereinafter code,the unit is standby.Please check the parameters
according to standby reason.
Standby code
555.1
555.3 Outer circumstance temp.Ta>54°C or Ta<-10°C, refrigerantion standby
555.4
Outdoor unit mode don't match with indoor unit mode ,outdoor unit setting single
555.5
cold single heat mode conflicted with indoor unit mode cause to standby
Error code definitionerror
In water temp.sensor(Twi)failure
Out water temp.sensor(Two)failure
In refrigerant temp.sensor(Thi)failure
Flow rate too low failure
Antifreeze fault
Defrosting temp.sensor(Te)failure
Ambient temp.sensor(Ta)failure
Suction temp.sensor(Ts)failure
Discharging temp.sensor(Td)failure
High pressure sensor failure
Low pressure sensor failure
High pressure switch HPS failure
4-way valve reversing failure
High pressure too low protection(Pd)
High pressure too high protection(Pd)
DC FAN failure
Compressor current protection
Outdoor unit model BM setting error
Module hardware excess current
Compressor out of step
Software excess current
Outer circumstance temp.Ta>27°C heating standby
Oil temp. fail to meet the condition of system start
Standby reason
73
Notes
Restorable
Restorable, 3 times
fault an hour lock
Restorable
Restorable, 3 times fault an hour lock
Restorable
Restorable, 3 times fault an hour lock
Restorable
Notes