Service Diagnosis
21
A6
Description
Indoor Fan Motor Abnormality
Supposed Cause
1. Indoor fan motor winding short, or the motor lead wire broken.
2. Indoor PCB faulty.
Troubleshooting
Does it rotate?
Does it connect
properly?
No
Yes
Change fan motor.
Check fan motor connector
condition.
Yes
No
Change PCB and turn on
power.
Turn off power supply and
rotate fan by hand.
No
Connect correctly.
Change fan motor.
C4/C9
Description
Indoor Heat Exchanger Thermistor Abnormality
Indoor Room Thermistor Abnormality
Supposed Cause
1. Thermistor, connector faulty.
2. Indoor PCB faulty.
Troubleshooting
Normal?
No
Yes
Normal?
# Refer thermistor resistance table.
Replace indoor PCB.
Check thermistor resistance
value.
Check the thermistor connector
condition.
No
Replace indoor thermistor.
Correct the connection.
*Remark:
Refer Thermistor resistance check procedure in Appendix A (Item 1, page 32).
Summary of Contents for SKYAIR
Page 1: ...R410A SERVICE MANUAL SKYAIR Inverter Single Split SM 5CKY CCY CEY EU A1...
Page 3: ...ii...
Page 29: ...Wiring Diagram 26 Wiring Diagram Model ABQ71 100 125 140AV1 Model ACQ71 100 125AV1...
Page 30: ...Wiring Diagram 27 Model AHQ71AV1 Model AHQ100 125AV1...
Page 31: ...Wiring Diagram 28 Model AHQ140AV1 Model ABQ140BV1...
Page 32: ...Wiring Diagram 29 Model ACQ100 125BV1 Model ABQ71 100CV1...
Page 33: ...Wiring Diagram 30 Model ABQ125 140CV1 Model ACQ71 100 125CV1...
Page 34: ...Wiring Diagram 31 Model AHQ71 100 125CV1 Model AHQ140CV1...