A long process of elimination and mis-diagnosing based on internet searching and decisions made on logic!
Final fix, upper control board!
Dishwasher kept losing power, 110v was good, circuit board replaced because of flashing green light, found out that is normal; too late!
Moved a wire connection around on the board and power came on! Must be the wiring harness, too late, wasn’t that!
Recommended to change door switch, cheap part, didn’t work!
Nothing left but the upper control board, (which I had bought and returned once) that fixed the problem!! So, I fixed it for about half the price of a new unit!!