Daikin RXYQ96PYDN Service Manual page 412

SiUS34-801A_b
Troubleshooting
Compressor inspection
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check if
the stop valve is
Check if
the compressor lead
wires are normal.
Check if the
wiring and connection to
the compressor
are normal.
Power OFF
Insulation
resistance of the compressor
is 100 kΩ or
Compressor
coils are disconnected.
Check 4
Check if the power transistor
is normal.
occurs again after restarting
∗
Check 4 : Referring to the information on P463.
Troubleshooting by Indication on the Remote Controller
NO
open.
YES
NO
YES
NO
YES
YES
below.
NO
YES
NO
∗
NO
YES
Failure
NO
the unit.
YES
Open the stop valve.
Replace compressor lead
wires.
Correct the wiring and
connection.
Replace inverter
compressor.
Replace inverter
compressor.
Replace inverter PC board
(A2P).
Continue operation.
(
Momentary power failure
is possible.
Replace inverter
compressor.
397