Daikin RXYQ-TA Series, Руководство по обслуживанию, Страница: 233 / 337

SiUS341615E Troubleshooting by Error Code
Service Diagnosis 220
Refer to page 295.
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. (
+
2)
+
2
RXYQ72-120TA: A3P
RXYQ144/168TA: A3P, A6P
NO
The error recurs at
startup.
Continue operation.
The error could have
resulted from instantaneous
power failure.
A
Continue operation.
Replace the compressor. (
+
1)
CHECK 4
Is the power
transistor
normal?
Replace the inverter
PCB. (
+
2)
This is not a failure of the
inverter PCB. Reinstall the
PCB.
YES
NO
NO
The relevant
compressor has a
wiring disconnection
in it.
The insulation
resistance of the relevant
compressor is low
(< 100 k
Ω
)
YES
Replace the compressor. (
+
1)
(
+
1)
RXYQ72-120TA: M1C
RXYQ144/168TA: M1C, M2C
CHECK 4