Thomas F Newark , DE December 24, 2021 Appliance: Whirlpool Microwave Oven/Hood 1.7 Cu. Ft. WMH31017AW0 Whirlpool Microwave Wmh31017aw0: Microwave door switch causing tray to spin when door was open. How to replace Microwave Door Interlock Switch. Videos helped me troubleshoot and feel confident in attempting the repair. Replaced all door switches as a precaution and two plastic mounts. Parts were easy to find on your website and arrived promptly Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes