Randall B East Wenatchee , WA April 09, 2022 Appliance: KitchenAid Microwave Hood Combo KHMC1857WSS0 Kitchenaid Microwave Khmc1857wss0: Vent grille panel. How to replace Grill-Vent (Stl). Replaced panel with new one. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes