My washer will fill with water, and then agitate and wont stop until i manually shut it off or change the cycle. Same for the spin…just keeps spinning. The spinning stops if I open the lid so it rules out the lid switch. Is the timer the only thing left that I can check?
Yes, sounds like a faulty timer.
http://www.appliancepartspros.com/ge-timer-wh12x10254-ap3419314.html
Eric