SiUS041111 Troubleshooting
Service Diagnosis 105
Troubleshooting In case of “H9” “J3” “J6”
Check No.01
Refer to P.116
H9 : Outdoor temperature thermistor
J3 : Discharge pipe thermistor
J6 : Outdoor heat exchanger thermistor
(R14443)
Caution
NO
YES
YES
NO
NO
YES
Reconnect the connectors
or thermistors.
J3 error: the discharge
pipe temperature is
lower than the heat
exchanger temperature.
Replace the defective
one(s) of the following
thermistors.
∗ Outdoor temperature
thermistor
∗ Discharge pipe thermistor
∗ Outdoor heat exchanger
thermistor
Cooling: Outdoor heat
exchanger
temperature
Heating: Indoor heat
exchanger
temperature
Replace the indoor heat
exchanger thermistor.
Replace the outdoor unit
PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Turn on the power again.
Error displayed
again on remote
controller?
Check No. 01
Check the thermistor resistance
value.
Normal?
Check No. 01
Check the indoor heat exchanger
thermistor resistance value in the
heating operation.
Indoor heat
exchanger thermistor
functioning?
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