Haier HU062WAMNA Operation & Installation Manual page 19

Electric wiring and the application
Failure code
Indoor unit failure code
Code
1
2
3 in refrigerant temp.sensor(Thi)failure
4 out refrigerant temp.sensor(Tho)failure
5
6 Communication failure with outdoor unit
7 communication failure with wired controller
8
10 Tank water temp.sensor(Ttank)failure
11
12 HU zone2 behind water mixing valve temp.sensor failure
14
15
16
17
18
20
Error code definition
in water temp.sensor(Twi)failure
out water temp.sensor(Two)failure
EEPROM failure
WS abnormal
IO PCB communication failure
low pressure abnormal
antifreeze failure
HU in/out water temp. too high
HU zone1 room temp.sensor failure
HU zone2 room temp.sensor failure
outdoor failure
If it occurs 3 times in an hour, lock the failure
If it occurs 3 times in an hour, lock the failure
17
Notes
Restorable
Restorable
Restorable
Restorable
Unrecoverable
Restorable
Restorable
Restorable
Restorable
Restorable
Restorable
Restorable
Restorable
Restorable
Restorable
Restorable