Fan Speed Has Been Out Of Control Diagnosis And Solution - Century B-VMH36SD-1 Service Manual

9.3.4 Fan speed has been out of control diagnosis and solution (E3)
Error Code
Malfunction conditions
Possible causes
Troubleshooting:
Does Not Run
Shut off the power supply,
fan rotates by hand
Is fan motor wiring correct
and solid?
Measure the voltage for
the fan motor from the
main PCB. OK?
Service Manual - VMH 9/12/18/24 SU & VMH30/36S D Series
E3/F5
When indoor fan speed remains too low (300RPM) for certain
time, the unit will stop and the LED will display the failure.
Wiring error
●
Fan assembly faulty
●
Fan motor faulty
●
PCB faulty
●
Runs
30