Daikin FTXS20G2V1B Service Manual page 156

SiENBE04-808_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 supply voltage.
Supply voltage
as specified?
YES
Rotate the fan by hand.
Does the fan
rotate smoothly?
YES
Turn on the
power again. System
restarted?
NO
Repeat a few
times.
NO
NO
(Precaution before turning on the power again)
Make sure the power has been off for
Disturbance factors
YES
∗ Noise ∗ Power supply distortion
Troubleshooting
Correct the power supply.
Replace the fan motor or
the outdoor unit PCB.
Check for such factors for a
long term.
∗ Try to restart a few times.
Replace the PM1. (Replace
the outdoor unit PCB.)
(R8402)
144