Daikin VRV EMERION REYQ-AATJA Service Manual page 409

SiUS372201EB
Reference
CHECK 4 Refer to page 454.
Part 6 Service Diagnosis
A
Power OFF
CHECK 4
Is the power
transistor normal?
Restarting
the system results
in the recurrence of
the error.
Power OFF
Replace the inverter PCB.
Restarting
the system results
in the recurrence of
the error.
NO
YES
NO
YES
NO
YES
Troubleshooting by Error Code
Replace the inverter PCB.
Continue operation.
(
The error could have
resulted from causes
such as instantaneous
power failure.
Continue operation.
Replace the
compressor.
)
402