Fan Motor Or Related Abnormality - Daikin Super Multi NX FFQ25B8V1B Service Manual

Troubleshooting for SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series
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 FFQ, FCQ, FDBQ, FBQ Series
322
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
SiBE121021_C
Connect the wiring and turn on
again.
Replace the fan motor.
Replace the indoor unit PCB.
(R11296)
Service Diagnosis