![background image](http://html1.mh-extra.com/html/daikin/sky-air-b-series-r-410a/sky-air-b-series-r-410a_service-manual_2460071158.webp)
Si21-205
Troubleshooting for Indoor Unit
Troubleshooting
147
5.5
Malfunction of Indoor Unit Fan Motor
Remote
Controller
Display
A6
Applicable
Models
FFQ-B
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 PC board
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.
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...