Melanie M Leawood , KS January 14, 2017 Appliance: Jenn-Air Electric Downdraft Surface Unit C228B-C Jenn-Air Cooktop C228b-C: Needed to update lightly used appliance to prepare home for sale. How to replace Jenn-Air Electric Grill Cover Accessory. Bought replacement handles, covers and burners. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes