Gary P Gainesville , GA June 04, 2016 Electric glass cooktop replacement Shut off the power, loosened the bracket that hold the cooktop tight, lifted the cooktop up and placed some boards under it to support it, removed the knobs, unsrewed the 13 screws that held it in pace and removed it, installed new top and reversed the process. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes