Troubleshooting SiUS04-924
92 Service Diagnosis
Troubleshooting
Check No.13
Refer to P.111
Caution
Be sure to turn off the power switch before connecting or disconnecting
the connector, or parts damage may occur.
(R9296)
NO
NO
NO
YES
YES
NO
YES
Check No. 13
Check for short-circuit.
Check with the inverter checker (*).
Turn off the power. Disconnect the
harnesses U, V and W.
Check the electrolytic capacitor
voltage.
Electricals or
compressor harnesses
connected as specified?
Replace the outdoor unit
PCB.
Replace the compressor.
Correct the power supply or
replace the outdoor unit
PCB.
Reconnect as specified.
Replace the outdoor unit
PCB, outdoor unit fan.
* Inverter checker
Part No.: 1225477
Normal?
DC325±50V?
Any LED off?
NO
YES
Check the supply voltage.
Correct the power supply.
Voltage as rated?
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