Turney H Leesburg , FL December 17, 2018 Appliance: Maytag Microwave MMV4205DH1 Maytag Microwave Mmv4205dh1: Microwave oven indicated close door to start. How to replace Microwave Door Interlock Switch. I read in the comment section of Appliance PartsPros. That this could be caused by one of two switches failing. One was bad so I replaced both. Microwave now works like new. Thanks Pros.for the example of issues and the recommended parts to repair.. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes