Download Daikin RQYQ8-48PY1B Specifications

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