SiBE12-908 Troubleshooting
Service Diagnosis 162
2.35 Fan Motor System Abnormality / Fan Lock
Remote
Controller Display
P9
Method of
Malfunction
Detection
During humidifying fan motor running, fan motor system abnormality is identified based on the
fan speed (rpm) detected by Hall IC.
Malfunction
Decision
Conditions
<Humidifying fan>
When fan speed does not reach 100 rpm within 12 seconds after fan motor start up.
Supposed
Causes
<Humidifying fan>
Defective motor (Hall IC) for humidifying fan
Breakage of relay harness or loose connector
Detection fault of fan speed due to defective outdoor unit PCB
Troubleshooting
Check No.23
Refer to P.177
(R10340)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Run the humidifying operation.
Is humidifying fan
motor harness S72
connected?
NO
Reconnect properly.
YES
Check for the rotation pulse
input of outdoor unit PCB
Check No.23
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