Phillip C West Lafayette , IN March 13, 2023 Appliance: Maytag Undercounter Dishwasher MDB7749SAM0 Maytag Dishwasher Mdb7749sam0 / : Inoperable dishwasher in diagnostics indicated bad keypad. How to replace Door Latch Assembly. Replaced the Control Panel (keypad) and Door Latch Assembly. The old ribbon cable had corroded traces. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes