Answer Bob, The door switch would be a very good place to start and check, But first, make sure the door hinges and door are tight and properly aligned to the opening, Check and make sure the door catches(especially the bottom catch) seat and lock in place when the door is closed, and the door is not protruding at the bottom. Then test the door switch circuit and wiring. Good Luck and Thanks Read More... Answered by AppliancePartsPros.com | Tuesday, January 10, 2012