Daikin REYQ-TA Series Service Manual page 249

SiUS371614E
Service Diagnosis
The
Power OFF
insulation
resistance of the
relevant compressor is
1 MΩ or less to
ground.
The coil
of the relevant
compressor has caused
wiring disconnection
in it.
CHECK 4
Is the power
transistor normal?
Restarting the
system results in the
recurrence of the
error.
Power OFF
Replace the inverter PCB. ( 2)
Restarting the
system results in the
recurrence of the
error.
CHECK 4 Refer to page 278.
A
YES
NO
YES
NO
NO
YES
NO
YES
NO
YES
Troubleshooting by Error Code
Replace the
compressor. ( 1)
1
REYQ72TA: M1C
REYQ96-168TA: M1C,
M2C
Replace the
compressor. ( 1)
Replace the inverter
PCB. ( 2)
2
REYQ72TA: A3P
REYQ96-168TA: A3P,
A6P
Continue operation.
(
The error could have
resulted from causes
such as instantaneous
power failure.
Continue operation.
Replace the
compressor. ( 1)
)
236