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Service Diagnosis
22
F6
Description
Heat exchanger overheat
Supposed Cause
1. The installation space is not large enough.
2. Faulty outdoor fan motor.
3. Faulty EXV.
4. Faulty outdoor heat exchanger thermistor.
5. Faulty stop valve.
6. Dirty heat exchanger.
7. Unit overcharge.
8. Defective outdoor unit PCB.
Troubleshooting
Check the
outdoor fan.
Check the
electronic expansion
valve.
Malfunction
Check the installation space.
Replace the outdoor heat
exchanger thermistor.
Malfunction
Replace the outdoor unit PCB.
Check the
installation
condition.
OK
OK
OK
OK
Malfunction
Change the installation
location or direction.
Clean the outdoor heat
exchanger.
Replace the outdoor fan
motor.
Reconnect the connector or
fan motor lead wires.
Replace the electronic
expansion valve or the coil.
Replace the outdoor unit PCB.
Check the
outdoor heat exchanger
thermistor.
Malfunction
*Remark:
Refer to Appendix A for thermistor resistance checking procedures (Item 1, page 32).
Refer to Appendix A for Inverter unit refrigerant check procedures (Item 2, page 33).
Refer to Appendix A for Installation condition check (Item 3, page 33).
For electronic expansion device checking procedures, please refer to Daikin procedures.
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...