My 3 year old kitchen aid dishwasher allows water to go out via the drain while wash cycle is running until no water is in the unit to circulate and wash, then it just humms until shut off time out. I check the drain check valve, it is operating properly by allowing water to flow out toward septic system but does not allow any flow from drain system back into machine. I do not see a valve between the drain pipe and the drain pump motor. How does the washer supposed to keep the water in the unit while washing?
755 views
Usually answered in minutes!
I fixed it! The soil sensor that removes built up debris was, when tested showing normally closed, it is supposed to be normally open circuit. I took it apart, cleaned it, put back together. Walla, fixed! Then I put back together, same problem. I noticed an adjustment screw (very small flat head machine screw on top or sensor). Adjusted that out (counter clockwise) until the sensor was back to normally open circuit. Turned a couple more times outward for safety sake and put back on the outlet of pump and she works fine now. The whole issue with, dishes coming out dirty, soap still in the dispenser, wash cycle short was the soil sensor. Now you know. By the way, you can remove the sensor and put drain line on the pump directly, then remove the two wires and take the sensor completely out and the dishwasher will work fine, but it will no longer self clean the filter system. It is a guess of how many turns to adjust the sensor past when it becomes normally open again so I went two turns and it has been fine and the self cleaner still operates as it should.
×