Noted wear on the door latch and the latch board. Before it totally failed you could push on the door to make it operate. After disassembly I checked the three micro-switches, which checked good. I replaced the door latch easily with the help of a video, then replaced the latch board. Be sure to use the little toggle on the replaced door latch on the new latch. I had to adjust the position of the latch board to make the microwave operate properly.