Trouble Shooting - Haier 1U71S2SG1FA Service Manual

4. Trouble Shooting

[1] Outdoor EEPROM Failure
if faulty disappears
after powe on again
Ckeck outdoor PCB,
If faulty ,replace it.
[2] IPM Over Current or Short Circuit
Check if wire of electric box
is correct , and if compressor
wire is fixed well
If compressor is
normal(compressor coil
resistor, insulation)
If power module is normal
Solve the failures due
to relative information
N
N
Y
N
Y
N
Y
233
Correct the wiring due to diagram
Repalce compressor
Replace power module