Daikin VRV III-S RXYMQ36 48PVJU Service Manual page 172

SiUS34-907
Troubleshooting Compressor inspection
Caution
Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
and connection to the compressor
Power OFF
Insulation resistance
of the compressor is 100 kW
coils are disconnected.
Check if the power transistor
again after restarting
: Refer to the information on P.213.
CHECK 4
Troubleshooting
Check if the stop
NO
valve is open.
YES
Check if the
NO
compressor lead
wires are normal.
YES
Check if the wiring
NO
are normal.
YES
YES
or below.
NO
Compressor
YES
NO
CHECK 4
NO
is normal.
YES
Failure occurs
NO
the unit.
YES
Troubleshooting by Indication on the Remote Controller
Open the stop valve.
Replace the compressor lead
wires.
Correct the wiring and
connection.
Replace the inverter
compressor.
Replace the inverter
compressor.
Replace the main PCB (A1P).
Continue operation.
(
Momentary power failure
is possible.
Replace the inverter
compressor.
(
163