Troubleshooting for SkyAir Indoor Unit
SiENBE18-621
286
Troubleshooting
5.5
Malfunction of Indoor Unit Fan Motor
Remote Control
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 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.
Summary of Contents for BPMKS967B2B
Page 1: ...SiENBE18 621 E Series Service Manual Applied Models Super Multi Plus Heat Pump...
Page 12: ...SiENBE18 621 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 19: ...List of Functions SiENBE18 621 8 List of Functions...
Page 33: ...Specifications SiENBE18 621 22 Specifications...
Page 69: ...Refrigerant Flow for Each Operation Mode SiENBE18 621 58 Refrigerant Circuit...
Page 121: ...Indoor Unit SkyAir Models SiENBE18 621 110 Function...
Page 169: ...Instruction SiENBE18 621 158 System Configuration FTXS 20 25 35C Indoor Unit...
Page 371: ...Method of Replacing The Inverter s Power Transistors Modules SiENBE18 621 360 Troubleshooting...
Page 393: ...SiENBE18 621 vi Index...