Lee B Round Rock , TX November 20, 2017 Appliance: Maytag Undercounter Dishwasher MDBH989AWB3 Maytag Dishwasher Mdbh989awb3: Start button would not work. How to replace Dishwasher Touch Pad Control Panel. Replace control board. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes