How to Troubleshoot a Whirlpool Microwave Oven Not Heating

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This troubleshooting guide is for a Whirlpool Microwave Oven, Model # WMH53521H. This Over-the-Range Oven achieved an overall score of 83 and came in #1 in the 2020 Consumer Reports Buying Guide. Tools Needed Multimeter (How to use a multimeter) 9-Volt battery Insulated Needle Nose Pliers 2-Insulated Screwdrivers Nitrile gloves Safety Alert A microwave oven can produce powerful jolts of electricity …