Randy T Manila , AR January 05, 2020 Appliance: Whirlpool 1.7 Cu Ft Microwave MH1160XSB3 Whirlpool Microwave Mh1160xsb3: Ours was broken on the top right side. How to replace Microwave Vent Grille. Removed and Replaced with new. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes