Yes, we pulled the torx screw. Nothing really was in there. mostly water, a little soft grey floating mush. cleaned it all out. We pulled the backflow preventer, and then replaced it with a new silicone one. We've tried flushing with baking soda, vinegar and hot water. nothing seems to help.
Can I test it without pulling it out from the wall? Are the pump contacts accessible from the front if I pull off the lower cover?
are you still there? got the unit out, side off, found the pump connections. ran through a cycle. when pump tried to pump, I got 112 v across the terminals, but the water would not rise high enough in the discharge to actually be expelled from the dishwasher. I can send a picture to explain what I mean.
No apparent clog in the discharge line. I pulled the gray hose out and blew through it. I really looked to me when the pump was going, that the output was very low pressure, rose up slowly to that line that I drew and stopped there. The air gap above did not appear to disappear, move or compress when the pump was running.
I can't figure out how to get the drain pump off. There don't appear to be any mounting bolts. Plastic all around, with no access doors. What's the trick?