Troubleshooting for Outdoor Unit SiBE121021_C
350 Service Diagnosis
Troubleshooting In case of “
H9
” “
J3
” “
J6
” “
J8
” “
J9
”
Check No.01
Refer to P.362
H9
: Outdoor temperature thermistor
J3
: Discharge pipe thermistor
J6
: Outdoor heat exchanger thermistor
J8
: Liquid pipe thermistor
J9
: Gas pipe thermistor
(R14415)
Caution
NO
YES
YES
NO
NO
YES
Turn on the power again.
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
• Liquid pipe thermistor
• Gas pipe thermistor
Cooling: Outdoor heat
exchanger
thermistor
Heating: Indoor heat
exchanger
thermistor
Replace the following
thermistor.
• Indoor heat exchanger
thermistor
Replace the outdoor unit
PCB.
(Replace the indoor unit
PCB.)
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
∗ Note
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 mode.
Indoor heat
exchanger thermistor
functioning?
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