Dead User Interface on Whirlpool Maytag Dishwasher

1st time I’ve seen this, so hopefully this helps other repairs out there.

This is on the Whirlpool line of brands integrated dishwashers with the fan assist dry. Mine happened to be a KUDE70FXSS5 but any in this line with fan assist dry could have this issue.

Dead User Interface Touchpad.

No lights, no beeps. Check for power going into the touchpad 5 vdc. If you have power, then your UI is dead. But why?

Ohm out the dry fan motor on the top left side of the door. In my case it went between high resistance and open, my meter could not lock onto it. Over time this amp draw during the dry cycle can take out the User Interface. If you are lucky, you can just unplug the fan motor and the UI will light up again, but in my case the UI was toast.

If your fan motor is out of spec change it to complete this repair without having to worry about a callback some months down the line.