Daikin SKYAIR, Руководство по обслуживанию

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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.