SiENBE04-507A
Troubleshooting
Service Diagnosis
115
4.4
Fan Motor (DC Motor) or Related Abnormality
Remote
Controller
Display
A6
Method of
Malfunction
Detection
The rotation speed detected by the Hall IC during fan motor operation is used to determine
abnormal fan motor operation.
Malfunction
Decision
Conditions
When the detected rotation speed is less than 50% of the H tap under maximum fan motor
rotation demand.
Supposed
Causes
Operation halt due to short circuit inside the fan motor winding.
Operation halt due to breaking of wire inside the fan motor.
Operation halt due to breaking of the fan motor lead wires.
Operation halt due to faulty capacitor of the fan motor.
Detection error due to faulty indoor unit PCB.
Summary of Contents for FTKS20DVMW(L)
Page 10: ...SiENBE04 507A List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 85: ...Control Specification SiENBE04 507A 76 Function and Control...
Page 159: ...Check SiENBE04 507A 150 Service Diagnosis...
Page 215: ...Others SiENBE04 507A 206 Others...
Page 221: ...Wiring Diagrams SiENBE04 507A 212 Appendix...
Page 225: ...SiENBE04 507A iv Index...