Here's an excerpt of a 20-minute training video now available in the Fundamentals of Appliance Repair training course on how to use the schematic diagram and timing chart to troubleshoot a problem with a washer drain pump that would not operate. The drain pump itself was good and getting voltage. Turns out that the problem was an open neutral.
The full training video explains these important troubleshooting concepts in detail:
- how to break down a complicated schematic and read it to solve the problem you’re working on,
- using timing charts to interpret timer switches on schematics,
- technical explanation of open neutrals,
- test methods for identifying an open neutral,
- power and loads.
Fundamentals graduates can also log in and watch the video because all STA courses come with lifetime access.