Bill M Saint Charles , MO October 25, 2017 Appliance: Jenn-Air Surface Unit- Ddraft Gas CG206B-C Jenn-Air Cooktop Cg206b-C: Lettering on knobs was worn off, couldn't read them anymore. The grates had warped over the years & pans would not sit flat on the grates causing the pans to tip & food to run together. How to replace Grate Kit. Removed 4 old knobs and 4 old grates. Replace with 4 new knobs and 4 new grates. Took about 3 minutes. Stove looks new again (it's 29 years old) and works great. I can fry eggs (and other foods) and not have them run together, and not have oil in one side of the skillet. No more tippy pans. Very, very nice! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes