Everything runs through the computer board part number WR55X10942,unplug it,remove the cover off of the computer board located on the back outside wall of the machine,look at the relays,if any are missing i think there's 7 of them then you don't have the updated board and most likely this is your problem,next time send some info on what the machine is doing or problems you're having but like i say everything on these machines runs through the board