Trane A5HL5060A1000A - Page 45

A5HL5-SF-1A-EN
45
F6 The Compressor Lack Phase or Mis Phase Protection
If ODU PCB cannot test compressor U, V, W phase current, or there is U/V/W phase sequence mistake, it will show F6 protection.
Check compressor
wiring connector, is
it well connected?
No
Yes
No
Problem solved?
Yes
The Compressor
wiring in good quality?
No
Yes
No
Problem solved?
Yes
Yes
Problem solved?
No
End
Replace compressor
Replace ODU PCB
Compressor phase-
current test circuit failure
Replace the wires
Re-connect
Display F6