ECM Fan Motor Won't Turn On or Won't Shut Off on HVAC Unit! Testing the Board and Fan Motor!
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YouTubeAC Service Tech LLC
ECM Fan Motor Won't Turn On or Won't Shut Off on HVAC Unit! Testing the Board and Fan Motor!
In this HVAC Training Video, I Show how to Troubleshoot Whether the ECM Fan Motor or the Main Circuit Board in the Furnace or Air Handler is Bad. I Show the Measurement Points to be Able to Diagnose This Effectively When the Fan Either Won't Turn On or Won't Shut Off. ECM Constant Torque and ECM Multispeed Motors are now the Base Level Fan ...
191.4K viewsMar 9, 2024
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