Haier AB422XCBAA Service Manual page 39

13 0D
14 4C
15 05
16 54
17 50
18 0C
19 4B
20 4D
21 32
22 54
○ shows resumable fault, ※ shows it is not resumable fault.
Setting address method:
The address setting can be realized by setting indoor PCB.
If you use the group control function, there should be a master unit and 15 sets of slave units.
For the master unit, the SW5-3 should be at "ON". For the slave units, the SW5-3 should be
at "OFF".
Please refer the below table,
Indoor
unit SW1-4
address
1 OFF
2 OFF
sensor abnormal
31D Solenoid
abnormal
15D Discharging
sensor abnormal
17D EEPROM abnormal
26D Pressure
abnormal(low
pressure)
15D Compressor overheat
23D Abnormal mode
18D Outdoor
B(suction
sensor—for MRV II)
15D Outdoor discharging
B(oil
sensor—for MRV II)
07D Power module failure
08D No load
SW1-3 SW1-2
OFF OFF
OFF OFF
short circuit for more than
2m continuously
valve Solenoid valve
incorrectly
continuously
temp. Sensor broken down or
short circuit for more than
2m continuously
EEPROM data missing
Low pressure switch acts in
normal running
the
temperature is higher than
120degree
Indoor operation mode is
different with the running
indoor unit.
coil Sensor broken down or
temp short circuit for more than
2m continuously
Sensor broken down or
temp short circuit for more than
2m continuously
Power module overheat, or
over current, or short circuit
Sensor abnormal or the
compressor not start up
SW1-1
OFF
ON
-39-
act
○
3 times
○
Run as the
default
value
○
discharging Resumable
if lower
than
100degree
○
○
○
※
※