I have no books to recommend. My experience is 38 years servicing, repairing, installing electronic/electrical systems for the Navy so, got my initial basic electrical/electronic theory education a long time ago along with specialized training in the years since. Retired now and doing washer/dryer repair as a hobby. Very simple compared to what I worked on. I was really shocked to learn that most "appliance techs" have very little to no training in this area and don't even know how to read/interpret the simple wiring diagrams and timer esterline charts and so many of them are just parts swappers with no logical approach to troubleshooting. Your best bet if you really want to understand the theory is to take a course at your local community college in basic electrical/electronic theory. That way, you get some hands on lab training to go with the book theory.

Eric

Guest, if the model number of your appliance could be provided, this will allow the most accurate information to be presented.