Dale E Rochester , MN April 27, 2020 Appliance: General Electric Microwave PVM1870DM1WW Ge Microwave Pvm1870dm1ww: Microwave running after door is closed. How to replace Lower Lever Switch. I replaced the door switch. I did order the Switch-Monitor. But I did not use them as they did not help to resolve the issue. Only the Door Switch resolved the problem. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes