Leonard G Hiram , OH August 20, 2015 Appliance: Jenn-Air Electric Cooktop CCE3401B Jenn-Air Cooktop Cce3401b: Changing the glass top on our cooktop so i needed new knobs. How to replace Knob, Infinite (Blk). Very easy - just slide them on. Order and shipment was very quick and easy. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes