This http://applianceassistant.com video describes the three types of appliance circuits, the three main elements of an appliance circuit, and the three problems that can occur within an appliance circuit to cause your washer, dryer, refrigerator, or any other appliance to not work properly. I hope you like it! Let me know what you think and what I can do to better help you!
For proper appliance repair training I recommend https://training.fredsappliance.com