My wife commented the other day that the dishwasher seemed to run for a long time during the day when she ran it. I didn't think too much of it, but last night I started a load at 10 pm before I went to bed. I woke up this morning, and the dishwasher was still going, and according to the knob, it was only about 1/2 way through its cycle.
I've not been able to do a lot of research, but so far, what I have found has pointed me towards either a thermostat or a timer. Found a video on youtube where the guy replaces the timer in a dishwasher that looks to be similar to mine, and it doesn't fix the problem. So then he has another video where he replaces the thermostat, and it takes care of the issue.
My thought is maybe the thermostat isn't registering that the water is up to temp, so it doesn't advance through the stages of the wash. I'm no dishwasher expert though. As far as I can tell, the water is getting hot enough. My whole kitchen smelled like hot plastic & dish washing detergent this morning, and when I opened the door, the air coming out felt just as hot as normal.
Any help would be appreciated.