Air Conditioner Service Manual
56
3.2.17 F6 The Compressor Lack of phase / Anti-phase protection.
If ODU PCB can’t test one, or even three phase of compressor current, it will show F6 protection.
Display F6
Check compressor
wiring connector, is
it well connected?
Re-connect
The Compressor
wiring in good quality?
Replace the wires
Compressor phase-
current test circuit failure
Replace ODU PCB
End
Replace compressor
No
No
No
Yes
Yes
Yes
Problem solved?
Problem solved?
Problem solved?
Yes
No
No
Yes
