Specifications

Troubleshooting by Remote Controller SiBE341027
138 Service Diagnosis
Troubleshooting
Refer to P.182
Open the stop valve.
NO
NO
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
Power OFF
Power ON
YES
YES
YES
NO
Power OFF
Power ON
(
(
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the inverter PCB
(A4P).
Is the stop valve open?
Are the
compressor lead
wires normal?
Are the wiring and
connection to the
compressor normal?
Is the insulation
resistance of the
compressor 100 kΩ
or less?
Compressor coils
are disconnected.
CHECK 4
Is the power transistor
normal?
Failure occurs again
after restarting the unit.
Failure occurs again
after restarting the unit.
Replace the inverter
compressor.
Continue the operation.
Continue the operation.
Momentary power failure
is possible.
Replace the inverter PCB
(A4P).
Replace the inverter
compressor.
Replace the inverter
compressor.
Correct the wiring and
connection.
Replace the compressor
lead wires.
CHECK 4