Haier HU062WAMNA Service Manual page 143

[116] Communication abnormal between transducer (inverter module board) and control PCB
Check if wire between control PCB
and inverter board is abnormal
Check if communication circuit of main
control PCB is abnormal
(if signal LED flashes abnormally)
If inverter module board is
abnormal
Solve the failures due to
relative information
N
N
N
143
Y
Adjust communication wire
Y
Replace main control board
Detecting circuit on inverter
Y
board broken down, replace
inverter module board