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Troubleshooting by Indication on the Remote Controller
281
Troubleshooting
YES
NO
Is
connection
wire connected
between the
connector?
Repair the wiring.
YES
NO
Does the
voltage
between terminals
P and N gradually rise
to 283VDC after
turning ON?
Replace the
inverter PCB.
YES
NO
The
voltage
between the P
and N terminals is
400VDC and 190VDC
or more when the
compressor is
running.
Replace the
inverter PCB.
NO
YES
Is
220V applied
at LB and NB on
the noise filter
PCB?
Replace the
inverter PCB.
A
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Turn ON again.