Fan Motor System Abnormality / Fan Lock - Daikin CTXU25G2V1B Service Manual

SiBE12-908

2.35 Fan Motor System Abnormality / Fan Lock

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