Haier AD072XLEAA [62/89] Diagnostic code

Haier AD072XLEAA [62/89] Diagnostic code
9.2.4. Diagnostic code
Display 1 Display 2 Display 3
Diagnostic description
Possible reason
1 01 01 Indoor ambient temp. sensor
failure
sensor broken down or short circuit for
more than 2m continuously
2 02 02 Indoor coil temp. sensor failure sensor broken down or short circuit for
more than 2m continuously
3 4A 11 Outdoor ambient temp. sensor
failure
sensor broken down or short circuit for
more than 2m continuously
4 49 12 Outdoor coil temp. sensor or
compressor discharging temp.
sensor failure
Sensor broken down or short circuit for
more than 2m continuously
5 48 10 Over-current protection CT check abnormal 3 times in 30m
6 53 14 High pressure abnormal High pressure switch acts 3 times in 30m
7 47 22 Power supply abnormal Fault phase, out of balance greatly
8 07 06 Communication between wired
controller and indoor abnormal
Communication abnormal for more than
4m continuously
9 06 05 Communication between
indoor and outdoor abnormal
Communication abnormal for more than
4m continuously
10 08 21 Drainage system failure Float switch broken down for more than
25m continuously
11 0B 30 indoor PCB CN12(Outside
alarm signal input) abnormal
Outside signal broken down for more than
10s
12 03 20 Gas pipe temp. sensor
abnormal
Sensor broken down or short circuit for
more than 2m continuously
13 0D 31 Solenoid valve abnormal Solenoid valve act incorrectly 3 times
continuously
14 4C 15 Discharging temp. sensor
abnormal
sensor broken down or short circuit for
more than 2m continuously
15 05 17 EEPROM abnormal EEPROM data missing
16 54 26D Low pressure switch abnormal Low pressure switch acts in normal
running(Open : Alarm, Close : Normal)
17 50 15 Compressor overheat
The discharging temp, is higher than 120
18 12 23 Abnormal mode Indoor operation mode is different with the
running indoor unit. (for example: one in
cooling, one in heating)
21 32 07
Outdoor power model
abnormal
Check outdoor power model wires
connection or change the model
22 54 08
The current is overlow No signal comes from current testor or
compressor doesn’t work
Mark:
Display 1: For remote type, flash times;
Display 2: Diagnostic code on YR-E12;
Display 3: For central controller YCZ-A001
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