Troubleshooting SiUS04-924
96 Service Diagnosis
Troubleshooting
Check No.06
Refer to P.108
P4 : Radiation fin thermistor
J3 : Discharge pipe thermistor
J6 : Outdoor heat exchanger thermistor
H9 : Outdoor air temperature thermistor
Caution
Be sure to turn off the power switch before connecting or disconnecting
the connector, or parts damage may occur.
(R7346)
NO
YES
YES
YES
NO
NO
NO
YES
Turn on the power again.
Normal?
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
Radiation fin thermistor
Discharge pipe thermistor
Outdoor heat exchanger
thermistor
Outdoor air thermistor
Indoor heat exchanger
thermistor
Replace the following
thermistor.
Replace the outdoor unit
PCB.
(Replace the indoor unit
PCB.)
Connector or
thermistor disconnected?
Error displayed
again on remote controller?
Indoor heat
exchanger thermistor
functioning?
Check No. 06
Check the thermistor resistance
Check No. 06
Check the indoor heat exchanger
thermistor resistance value in the
heating mode.
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