Shirley M Galveston , TX January 15, 2017 Appliance: Jenn-Air Dishwasher JDB2100AWS Jenn-Air Dishwasher Jdb2100aws: Some of the buttons on my dishwasher weren't working. How to replace Knob, Timer/Thermost. Took the old one out and installed the new one, works great. The problem was, spills on the control panel had caused corrosion to some buttons on the board. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes