The door switch is important because, if it's defective, the dishwasher won't work at all. To reach it, you need to remove the control panel cover, or sometimes the interior liner of the door. If it's defective, you need to completely replace it.
Often the main wiring connection from the house, at the dishwasher, burns and breaks the connection. If that's the problem, the wires must be repaired/replaced as necessary. If that's not the problem, check the wiring to the door switch, the wiring between the door and the lower part of the dishwasher, and the wiring to the timer. Repair any broken, burned, brittle, or defective wiring, using the proper appliance-grade wire and connectors.
crwdns2934105:0crwdne2934105:0
crwdns2934113:0crwdne2934113:0
crwdns2915270:0crwdne2915270:0
crwdns2889612:0crwdne2889612:0
4
crwdns2942205:01crwdne2942205:0
I can't say anything about your particular model, but I have fussed for hours with my mom's Jenn-Air (a brand swallowed by Whirlpool) dishwasher. Her's is stuck in one cycle setting and refuses to change any settings. It's a totally different situation from yours, but if it's any help, I have to say that disassembling the door to get at the electronics and the latch was a bear. To boot I found that replacement parts were difficult to specify and locate, and when I found what I wanted the price was just silly. Mom's machine still works very well, just in one setting. She'll be living with it as-is until something else breaks down.
crwdns2934271:0crwdnd2934271:0 Jeff Stephens crwdne2934271:0