Barry H Mount Pleasant , WI January 31, 2015 Appliance: Whirlpool Microwave MH6151XHQ1 Whirlpool Microwave Mh6151xhq1: Needed to replace the charcoal filter element in my whirlpool (over the range) microwave oven. How to replace Charcoal Filter. Used a Phillips screw driver to remove the top trim piece on the microwave oven. Then, lifted out the old filter element. Then, installed the new filter element. Then, re-installed the top trim piece on the microwave oven. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes