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SiBE04-624_B
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.
Voltage as specified?
YES
Check the connection of the
compressor harness.
Loose or
disconnected?
NO
Rotate the fan by hand.
Does the fan rotate
smoothly?
YES
Turn on the
power again. System
restarted?
NO
Repeat a few
times.
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
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 outdoor unit
PCB.
(R18130)
99
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