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SiBE12-816_D
Troubleshooting for Outdoor Unit
Service Diagnosis
236
Troubleshooting
Check No.01
Refer to P.261
Check No.12
Refer to P.263
(R14407)
Caution
YES
NO
NO
YES
YES
YES
YES
NO
NO
NO
Check No. 01
Check the outdoor heat
exchanger thermistor.
Check No. 01
Check the room temperature
thermistor.
Check No. 12
Check the electronic expansion
valve.
Wrong wiring or
piping?
Check the wiring and piping.
Change the refrigerant to remove
moisture from the piping (after
drawing a vacuum).
Activate the wiring error check
mode.
Replace the electronic
expansion valve or coil.
Replace the outdoor heat
exchanger thermistor.
Replace the room temperature
thermistor.
Replace the room temperature
thermistor or indoor heat
exchanger thermistor.
Do the vacuum drying.
Replace the indoor unit PCB
and then start the wiring error
check function.
Does it
conform to the thermistor
characteristic chart?
Does it
conform to the thermistor
characteristic chart?
Functioning?
Error again?
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.