"My dryer won't start. I think it's the belt."
Many people mistakenly think that working on an electric dryer is easy Parts-changing-monkey work. Just swap out the part that isn't doing its thing, right?
Oh, no, my bruthahs and sistahs. Electric dryers can have interesting circuits that are fun to troubleshoot... if you know your stuff. If you can’t troubleshoot the electric circuits in these “low tech”, Old Skool appliances, how can you expect to troubleshoot the modern, computer-controlled appliances? We teach this in the Fundamentals course.
Both of the electric dryers in the video below wouldn't start. The causes were different, but in both cases we were able to find the exact failure by gazing upon the schematic diagrams and doing a few measurements from the control panel. Minimum disassembly, maximum bad-assery. This is the power of knowing basic electricity and circuits. Learn more, earn more!
This video demonstrates a powerful troubleshooting tool: Electrically Equivalent Points (EEPs). By identifying EEPs on the schematic, you can speed up your diagnosis and prevent unnecessary disassembly. Work smarter not harder!