Troubleshooting SiBE01-829
46 Service Diagnosis
Troubleshooting
Check No.06
Refer to P.55
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Open the stop valve.
Is it opened?
Check the stop valve.
NO
NO
NO
YES
YES
YES
Provide sufficient air passage.
Clean the air filter.
Clean the heat exchanger.
Check the intake air filter.
Check the dust accumulation on
the indoor unit heat exchanger.
Is there any short-circuit?
Is it very dirty?
Is it very dirty?
Check the air passage.
YES
NO
Correct the connection.
Is it normal?
Check the connector connection.
Check No. 06
Indoor unit heat exchanger
thermistor check
(R8503)
YES
NO
Replace the indoor unit PCB.
Replace the thermistor
(replace the indoor unit PCB).
Check thermistor
resistance valve
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