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Troubleshooting
SiBE12-933_A
198
Service Diagnosis
Troubleshooting
Check No.06
Refer to P.215
P4
: Radiation fin thermistor
J3
: Discharge pipe thermistor
J6
: Outdoor unit heat exchanger thermistor
J8
: Liquid pipe thermistor
J9
: Gas pipe thermistor
H9
: Outdoor temperature thermistor
(R7145)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Check No. 06
Check the thermistor resistance
value.
Turn on the power again.
Connector or
thermistor
disconnected?
Error displayed
again on remote
controller?
Normal?
Check No. 06
Check the indoor unit heat
exchanger thermistor resistance
value in the heating mode.
Indoor unit heat
exchanger thermistor
functioning?
NO
YES
YES
NO
YES
YES
NO
NO
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
z
Radiation fin thermistor
z
Discharge pipe thermistor
z
Outdoor unit heat
exchanger thermistor
z
Liquid pipe thermistor
z
Gas pipe thermistor
z
Outdoor temperature
thermistor
Replace the following
thermistor.
z
Indoor unit heat
exchanger thermistor
Replace the outdoor unit
PCB.
(Replace the indoor unit
PCB.)