We woke up to a blinking "Normal" and water in bottom. No response to any buttons. Flipped breaker, waited, then back on. No change. Had to leave town for 2 days, left power on and dishwasher open and normal blinking, status had 2 horizontal dashes. Decided to troubleshoot today. No lights were on. Closed it and pushed cancel. It drained. I then ran it through wash cycle. Flawless. Any ideas of what the problem could be that allowed it to fix itself?