Probably moisture in the electronics at top of door. Let dishwasher thoroughly air dry by leaving door open for several days. Then try a short cycle. When it completes do not let door stay closed, especially overnight. I believe there's a design defect or seal failure but once I understood what's going on and don't let it sit closed overnight, it works perfectly.
You might want to also detach the top panel and carefully reseat the plug connector(,s). IMPORTANT: Turn the circuit breaker off when doing this.