Model Number: MDB7809AWM2
Brand: Maytag
Age: 6-10 years

Hello,

My Maytag dishwasher MDB7809AWM2 does not start. Start & Drain buttons do not light up. Other buttons light up. I did the following tests successfully:
1. Door latch switch continuity test - pass
2. Diagnostic test as per Tech sheet - by pressing Heated Dry -> Normal -> Heated Dry -> Normal. Then the machine went through the wash cycle for about 20 minutes. At the beginning, all the lights on the Touch pad turned on as well. I am not sure what to make out of this test. Seemed it went ok.
3. I replaced the control board (the electronic board part# W10255103). Even then Start & Drain buttons do not light up. But again the diagnostic test went through fine with the new control board.
So Control board didn't seem to be the problem.
4. All the wiring are tight, no corrosion, the control panel area inside is very clean.

So should I be replacing Touch pad (or) what could be the issue here?

Appreciate your help on further diagnostics and advise.