Bob for Model Number SHXM78Z55N/01 I have a Bosch dishwasher that will not drain. I have replaced the pump and it still will not work. If there is water in the sump then it will run the pump for a second and then shut off and do that a couple times but it will not run constantly to drain the water. But if I use a separate pump to get all of the water out of the sump and then start the dishwasher it will run the drain pump like normal and begin to run the cycle. It will then work perfect until it is time to drain again. And then it does the same thing where it will not keep the drain pump turned on, only pulse. Not sure if it is the check valve or the turbidity sensor or something else. the drain line is not blocked because I can drain it through the drain line with a transfer pump. Any suggestion would help, thanks
Answer Bob, The most likely cause for this issue will be a faulty control board since the drain pump has been replaced. Read More... Answered by AppliancePartsPros.com | Wednesday, March 25, 2026