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 Motor Across all Residential HVAC Equipment. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.

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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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