Since the door latch broke off and disappeared, I did not think it was the typical door-closed-microswitch. I thought the switch was connected to the cables that yank the door closed. I chatted with tech support, THEY WERE OPEN ON A SUNDAY NIGHT! They told me the proper location of the switch and they were correct. After I removed the old switch, I could see the latch that presses against the door was broken off and missing. Ordered a new latch, it arrived a few days later, replaced and done! Thanks to Suzanne at tech support!!