Check behind the dishwasher kick plate (toe plate?) for the "tech sheet". Hopefully it will be there in a plastic sleeve.
I can't find it online or a schematic for the machine so if it is there hopefully it has the schematic or at least how to check for power to the machine.
Some dishwashers (I don’t know about yours) have a thermal cut off fuse that operates (and needs to be replaced) which cuts off the power to the machine if there is a problem with the heater element or perhaps one of the motors i.e. circulation pump or drain pump drawing too much current. Given that you said that the plumbing was blocked this may have affected the drain pump and the thermal cutoff operated.
If there is a thermal fuse and it has operated then there will be a reason for this which will have to be found
This is just what I think and may not be the case however