Troubleshooting SiENBE04-512A
120 Service Diagnosis
Troubleshooting
Check No.6
Refer to P.132
P4 : Radiation fin thermistor
J3 : Discharge pipe thermistor
J6 : Outdoor heat exchanger thermistor
H9 : Outdoor air temperature thermistor
Turn on the power again.
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
Radiation fin thermistor
Discharge pipe thermistor
Outdoor heat exchanger
thermistor
Outdoor air thermistor
Replace the following
thermistor.
Indoor heat exchanger
thermistor
Replace the outdoor unit
PCB. (Replace the indoor
unit PCB.)
(R4097)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Error displayed again
on remote control?
NO
YES
YES
YES
NO
Indoor
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 heat exchanger
thermistor resistance value in the
heating mode.
SiENBE04-512A.book Page 120 Friday, October 5, 2007 1:49 PM
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