In this HVAC Training Video, I Show How Several ECM Multi-Speed Fan Motors Work and How to Troubleshoot Them to Determine the Problem. I Show Measurement Voltages, What Should Happen, and Where to Visually Inspect. Blower Motor Won't Shut Off, Blower Won't Turn On. Blower Ramps Up and Down. ECM Motor Terminal Wiring. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety. Tools Used In The Video UEI DL479 Multimeter With Temp Sensor http://amzn.to/2jtsUbJ Magnet Jumpers- https://amzn.to/2PyKPQZ Alligator Jumpers- https://amzn.to/2PxqJXn ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Our Related Videos/Articles ECM Multi-Speed and Variable Speed Blower Motor Troubleshooting Playlist:    • ECM Blower Motor Troubleshooting!   Full Blower and Fan Motor Troubleshooting Playlist:    • Troubleshooting HVAC Fan and Blower M...   https://www.youtube.com/watch?v=locNv9WsanA https://www.youtube.com/watch?v=lKsIgjEJDII https://www.youtube.com/watch?v=lO5PArRF9rg https://www.youtube.com/watch?v=flbUtLMeSOQ https://www.youtube.com/watch?v=uHXw8o_YoZk https://www.youtube.com/watch?v=5GITgsRmSZ4 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Our HVACR Educational Books, E-Books, Workbooks, Cards, Posters, and PowerPoints: All Our Educational Products on Our Site: https://www.acservicetech.com/store All Our Educational Products on Amazon: https://amzn.to/48pDd82 Mini Split Book and E-Book on Our Site- https://www.acservicetech.com/mini-split-book Mini Split Paperback on Amazon- https://amzn.to/3ytHJSs Mini Split Paperback on TruTech Tools- https://www.trutechtools.com/BooksGuides?aff=8 Refrigerant Charging Book and E-Book: https://www.acservicetech.com/ac-book Refrigerant Charging Paperback on Amazon: https://amzn.to/46xTeHf ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Our HVACR Online Resources! Our HVAC Calculators: https://www.acservicetech.com/hvac-calculators Our Newest Articles: https://www.acservicetech.com/articles Try our HVAC/R Quizzes! https://www.acservicetech.com/quizzes Our Other Resources: https://www.acservicetech.com/resources ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Tools Used in Our Videos! Tool Links on Our Site: https://www.acservicetech.com/tools Our Tool List on Amazon: https://www.amazon.com/shop/acservicetech Support the Channel by purchasing tools through TruTech Tools! Use this link https://www.trutechtools.com/?aff=8 Save 8% at checkout using code "acservicetech" ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Follow Us On Our Social Media & Podcasting Channels! Patreon: https://www.patreon.com/acservicetech Facebook: https://www.facebook.com/acservicetech Instagram: https://www.instagram.com/acservicetech/ X: https://twitter.com/acservicetech LinkedIn: https://www.linkedin.com/company/ac-service-tech-llc Tiktok: https://www.tiktok.com/@acservicetech Spotify: https://open.spotify.com/show/74KXLz5uJoQZXG8V5F2r9n Apple Podcasts: https://podcasts.apple.com/us/podcast/ac-service-tech-answers-podcast/id1522359430 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ ⚠️ 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. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ #hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #blowermotor #blowermotor #multispeed #troubleshooting #diagnosis #ECM #ecmmotor ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal.