Daikin VRV EMERION RXYQ-AATJA, Руководство по обслуживанию, Страница: 313 / 429

SiUS342303E Troubleshooting by Error Code
Part 6 Service Diagnosis 306
Reference
CHECK 4 Refer to page 376.
NO
YES
NO
YES
NO
Power ON
Restart the
compressor, and
then check for the
operation. Does the
error recur?
Has the
compressor started
up at high differential
pressure (0.5 MPa
(72.5 psi) or
more)?
The error recurs
at startup.
YES YES
Power OFF
Power OFF
Power ON
Power ON
Power OFF
Pressure equalization failure.
Check for the refrigerant
system.
Quit work.
Pressure equalization failure
may have occurred. Check for
the refrigerant system.
YES
YES
NO
Replace the inverter PCB.
NO
The error recurs at
startup.
Continue operation.
The error could have
resulted from instantaneous
power failure.
A
Continue operation.
Replace the compressor.
CHECK 4
Is the power
transistor
normal?
This is not a failure of the
inverter PCB. Reinstall the
PCB.
Replace the compressor.
YES
NO
NO
The internal
wiring of the
compressor coil is
defective.
The insulation
resistance of the relevant
compressor is low
(< 100 k )
YES
Replace the inverter
PCB.