Haier MVAH018MV2AA Service Manual page 39

[05] EEPROM failure
[09] Indoor address repeated
If wiring between P and
If communication wire is
If indoor QTY connected with
outdoor is normal
Check outdoor connecting
board,if faulty, replace it
If the chip is fixed well
Yes
If the chip is damaged
No
Check if PCB is faulty,
if yes, replace it
Q is normal
Yes
connected with multi
outdoors
No
Yes
No
Reconnect
Yes
Replace it
No
Modify the wiring
Yes Modify the communication
wire
No
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