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Troubleshooting by Indication on the Remote Controller
203
Troubleshooting
NO
YES
NO
NO
Replace the
thermistor.
The
radiation
fin of the inverter
PCB concerned
exceeded a
temperature
of 82˚C.
YES
Defective
radiation fin from
the power unit
• Blocked air
suction port
• Stained
radiation fin
• High outdoor air
temperature
• Fan propeller
for damage
Does
the error
recur when the
power supply turns ON
to start the
compressor?
YES
Replace the
compressor
inverter PCB.
Turn OFF the power
supply, and then make
measurement of
resistance of the
radiation fin thermistor.
Connect and disconnect
the connector for the
radiation fin thermistor,
and then properly
connect it.
CHECK 11
Is the
thermistor
resistance normal?
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
A