Fan Motor Or Related Abnormality - Daikin 3MKS50E3V1B Service Manual

SiBE121135
6.3

Fan Motor or Related Abnormality

A6
Remote
Controller
Display
Method of The signal from the fan motor detects abnormal fan speed.
Malfunction
Detection
Malfunction
When the fan rotations are not detected while the output voltage to the fan is at its maximum
Decision
Conditions
Supposed
Causes
Troubleshooting FCQC, FFQ, FDBQ, FBQ Series
Service Diagnosis
Troubleshooting for SA Indoor Unit - FCQG, FFQ, FHQ, FDBQ, FBQ Series
Defective indoor fan motor
Broken or disconnected wire
Defective contact
Defective indoor unit PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Is the
wiring from the fan
motor securely connected to
connectors on the
indoor unit
PCB?
YES
Does the fan motor run?
YES
NO
NO
Connect the wiring and turn on
again.
Replace the fan motor.
Replace the indoor unit PCB.
(R11296)
287