Daikin FVXG25K2V1B Service Manual page 85

SiBE061121_A
Troubleshooting
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check the power supply voltage.
Voltage as rated?
YES
Check the connection of the
compressor harness.
Loose or
disconnected?
NO
Does the
outdoor fan rotate
smoothly?
YES
Turn on the
power again. System
restarted?
NO
Repeat a few
times.
Error
again within 3 minutes
after turning on the
power?
NO
NO
YES
NO
(Precaution before turning on the power again)
Make sure the power has been off for at
least 30 seconds.
YES
Disturbance factors
∗ Noise ∗ Power supply distortion
YES
Troubleshooting
Correct the power supply.
Reconnect the harness.
Replace both the fan motor
and the outdoor unit PCB.
Check for such factors for a
long term.
∗ Try to restart a few times.
Replace the indoor
unit PCB.
Replace the outdoor
unit PCB.
(R18179)
75