I have a KitchenAid KUDS30IXBLA that doesn't seem to be filling with enough water. It's been making a chugging sound for quite some time and the dishes haven't been getting very clean. I thought this might be due to the control board failing as it's been systematically failing for the last year or so and finally burn't up a few weeks ago. I was lucky enough to find a new control board after much searching, they're very difficult to find. Unfortunately installing the new board didn't fix this problem. So, I decided to stick a camera inside the dishwasher and see what was going on. What I found was that the washer arms were only spinning intermittently, thus the chugging sound.
I've found that if I add a couple glasses of water to the tub the chugging sound quits and the spray arms rotate normally as they should. So I assume it isn't filling up with enough water. It fills just up to the heating element.
I checked the water inlet valve for water flow several times and the flow seemed fairly good, although it did slow down a little once for some reason.
Does anyone have any idea what could be wrong.
Thank you for your help.