The heating element does not turn off after the cycle ends.
This sounds similar to the recall, but the recall was for plastic-tubbed dishwashers and this is a stainless tub.
Here are your parts, includes a wiring diagram.
Replacement parts for Maytag MDBH975AWS DISHWASHER- UNDERCOUNTER | AppliancePartsPros.com
Sounds like the control board is toast.
I would try removing power from the unit for a couple minute to see if it will reset.