Daikin AT12BV1LS Pocket Manual page 79

Troubleshooting
Trouble
shooting
Check No.13
Refer to
P.163
78
Be sure to turn off power switch before connect or
Caution disconnect connector, or parts damage may be occurred.
Check No. 13
Check for short-circuit.
Normal
YES
Check the electrolytic
capacitor voltage.
DC290~380V?
YES
Electricals
or compressor harnesses
connected as
specified?
YES
Turn off the power. Disconnect
the harnesses U, V and W.
Check with the inverter
checker (∗).
Any LED off?
NO
NO
Replace the outdoor
unit PCB.
NO
Replace the outdoor
unit PCB.
NO
Reconnect as
specified.
∗ Inverter checker
Part No.: 1225477
YES
Correct the power
supply or replace the
outdoor unit PCB.
Replace the
compressor.
Service Diagnosis
Si10-417
(R3041)