Carole R Brookeville , MD October 05, 2015 Appliance: Whirlpool 1.7 Cu Ft Microwave MH2175XSQ0 Whirlpool Microwave Mh2175xsq0: Vent grille on top of microwave broke off at screws and was interfering with opening the door. How to replace Charcoal Filter. Purchased new vent grill and screwed it on. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes