SiBE12-933_A
Troubleshooting
Service Diagnosis
195
Troubleshooting
Check No.08
Refer to P.217
Check No.13
Refer to P.218
Check No.14
Refer to P.219
(R7144)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Abnormal
Check No. 08
Check the discharge pressure.
Normal
NO
NO
NO
YES
Check the power supply
Judgment
Check No. 13
Check for short-circuit.
Normal?
Check the electrolytic capacitor
voltage.
DC270±30V?
Electricals or
compressor
harnesses connected
as specified?
Turn off the power. Disconnect the
harnesses U, V and W.
Check with the inverter checker (
∗
).
Any LED off?
YES
YES
NO
Replace the stop valve.
Replace the outdoor unit
PCB, outdoor unit fan.
Replace the four way valve
coil.
Replace the outdoor unit
PCB.
Reconnect as specified.
∗
Inverter checker
Part No.: 1225477
Correct the power supply or
replace the outdoor unit
PCB.
Replace the compressor.
Check No. 14