SiEN04-306D Troubleshooting
Service Diagnosis 129
Troubleshooting
Check No.6
Refer to P.141
P4 : Radiation fin thermistor
J3 : Discharge pipe thermistor
J6 :
Outdoor heat exchanger thermistor
H9 : Outdoor air thermistor
Turn on the power again.
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
z Radiation fin thermistor
z Discharge pipe
temperature thermistor
z Outdoor unit heat
exchanger temperature
thermistor
z Outdoor air thermistor
Replace the following
thermistor.
z Indoor unit heat
exchanger thermistor
Replace the outdoor unit
PCB. (Replace the indoor
unit PCB.)
(R2849)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Error displayed again
on remote controller?
NO
YES
YES
YES
NO
Indoor unit
heat exchanger thermistor
functioning?
NO
Connector or thermistor
disconnected?
NO
YES
Normal?
Check No. 6
Check the thermistor resistance
value.
Check No. 6
Check the indoor unit heat
exchanger thermistor resistance
value in the heating mode.
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