Robert P Opelika , AL July 11, 2014 Appliance: Maytag Undercounter Dishwasher MDB7709AWW2 Maytag Dishwasher Mdb7709aww2: Light normal heavy start and cancel buttons not working. How to replace Dishwasher Control Panel. Using service literature inside the dishwasher, isolated problem to front control panel. Replaced control panel. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes