Troubleshooting SiBE04-809
114 Service Diagnosis
Troubleshooting
Correct the power supply.
Replace the PM1.
Check for such factors for a
long term.
∗ Try to get restarted a
couple of times.
(R7179)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
YES
YES
NO
YES
(Precaution before turning on the power again)
NO
Replace fan motor and
outdoor unit PCB.
(Replace the outdoor unit
PCB.)
Check the supply voltage.
Rotate fan by hand.
Disturbance factors
∗ Noise ∗ Power supply distortion
Repeat a
couple of times.
Make sure the power has been off for
at least 30 seconds.
Turn on the
power again. System
restarted?
Does fan rotate
smoothly?
Supply voltage as
specified?
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