Troubleshooting for Outdoor Unit SiBE121021_C
346 Service Diagnosis
Troubleshooting
Check No.15
Refer to P.366
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
YES
Correct the power supply.
(R14560)
NO
NO
YES
NO
YES
YES
Replace the outdoor unit
PCB.
Replace the compressor.
Correct the power supply or
replace the outdoor unit
PCB.
Reconnect them as
specified.
∗ Inverter checker
Part No.: 1225477
Turn off the power.
Check the power supply voltage.
Voltage as rated?
Check the connection.
Electrical
components or
compressor
harnesses connected
as specified?
Turn on the power.
Check the electrolytic capacitor
voltage.
320 ± 50 VDC?
Turn off the power. Disconnect the
harnesses U, V, and W.
Check No. 15
Check with the inverter checker (∗).
Any LED OFF?
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