Daikin D-Series User Manual

Si18-525B Troubleshooting for SkyAir Indoor Unit
Troubleshooting 345
5.5 Malfunction of Indoor Unit Fan Motor
Remote
Controller
Display
A6
Applicable
Models
FFQ, FCQ, FBQ
Method of
Malfunction
Detection
Detection of abnormal fan speed by signal from the fan motor
Malfunction
Decision
Conditions
When fan speed does not increase
Supposed
Causes

Disconnection, short circuit or disengagement of connector in fan motor harness

Faulty fan motor (disconnection, poor insulation)

Abnormal signal from fan motor (faulty circuit)

Faulty PCB

Instantaneous fluctuation of power supply voltage

Fan motor lock
(Caused by motor or other external factors)

Fan does not turn due to a tangle of foreign matters.

Daikin D-Series Specifications

General

HSPF Rating	Up to 10.0
Cooling Capacity	9, 000 - 36, 000 BTU/h
Heating Capacity	9, 000 - 36, 000 BTU/h
Energy Efficiency Ratio (EER)	Up to 12.5
Sound Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Noise Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Power Supply	208/230V, 1-phase, 60Hz