Michael A Smithville , TN April 13, 2018 Appliance: Jenn-Air Electric Downdraft Surface Unit C202-C Jenn-Air Cooktop C202-C: Bad switch. How to replace Cooktop Burner Control Knob Kit. Removed old switch, replaced it with a new one. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes