Service manual

Troubleshooting Si06-305
92 Service Diagnosis
Troubleshooting
Check No.6
Refer to P.107
P4 : Radiation fin thermistor
J3 : Discharge pipe temperature thermistor
J6 : Outdoor unit heat exchanger temperature 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
temperature thermistor
Outdoor unit heat
exchanger temperature
thermistor
Liquid pipe temperature
thermistor
Gas pipe temperature
thermistor
Outdoor air temperature
thermistor
Replace the following
thermistor.
Indoor unit heat
exchanger thermistor
Replace the outdoor unit
PCB. (Replace the indoor
unit PCB.)
(R3043)
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.