Troubleshooting by Remote Controller
Si20-701_B
299
A
Check the power
transistor on the inverter
PCB using a multiple
tester.
Connect the compressor
cable, and then restart the
operation.
Does
the power
transistor have any
abnormalities?
Is a
difference
between high
pressure and low
pressure prior to
startup
0.2MPa?
The error
is displayed again.
Replace the
inverter PCB.
∗
The inverter is
likely to have
got defective
due to the error
of the
compressor.
After the
completion of
replacement,
be sure to
check the
compressor.
End of
measures:
Check the
refrigerant
system.
Check of
compressor:
Check the
compressor for
abnormal
sounds,
vibration,
operating
conditions, and
others according
to the
Compressor
Diagnosis
Procedure.
Defective
pressure
equalization:
Check the
refrigerant
system.
Power
OFF
Power
ON
YES
YES
NO
YES
NO
NO
It can take a
maximum of
60 minutes to
determine the
error.
