9.2.4 Fan speed has been out of control diagnosis and solution(E3)
Error Code
E3
Malfunction decision
conditions
When indoor fan speed keeps too low (300RPM) for certain time,
the unit will stop and the LED will display the failure.
Supposed causes
●
Wiring mistake
●
Fan ass’y faulty
●
Fan motor faulty
●
PCB faulty
Trouble shooting:
Power off, then restart the
unit 2 minutes later
Shut off the power supply,
Rotate the fan by hand.
The unit operates normally.
Find out the cause and have
it solved
Check the wiring of fan
motor
No
Yes
No
Correct the connections.
No
No
Replace the fan motor
Yes
Yes
Measure the voltage for the
fan motor from the main
PCB
Yes
Replace the main PCB
No
Содержание Aurora MOF-24HFN1-QRD0GW
Страница 1: ...Aurora 3D Inverter Series Service Manual 2014 ABSEU A1 1410...
Страница 9: ......
Страница 12: ...5 Wiring Diagram 5 1 Indoor Unit MSABAU 09HRDN1 QRC8GW MSABBU 12HRDN1 QRC8GW MSABDU 18HRDN1 QRC8GW...
Страница 13: ...MSABEU 24HRDN1 QRC8GW...
Страница 14: ...5 2 Outdoor Unit MOZ 09HFN1 QRD0GW MOZ 12HFN1 QRD0GW...
Страница 15: ...MOZ1 18HFN1 QRDOGW...
Страница 16: ...MOF 22HFN1 QRD0GW...
Страница 23: ...Be sure to check for gas leakage...