Susan L Monroe , CT February 24, 2015 Appliance: KitchenAid Electric Cooktop KECC502GWH4 Kitchenaid Cooktop Kecc502gwh4: Cracked glass cooktop made by kitchenaid. How to replace Glass Cooktop. Disconnected power Removed cooktop from counter Turned upside down, removed screws holding heating unit from cooktop. Turned right side up and lifted glass cooktop from heating unit frame. Put new glass cooktop on heating unit frame. Replaced screws holding glass cooktop to heating unit frame. Replaced glass cooktop unit To countertop. Reconnected power. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes