Glenn for Model Number LDF7774WW My mom says the dishwasher stops in the middle of the drain cycle. When I checked the pump manually it runs then stops then runs and you can hear it drain. Is this normal? All the video's I see show the pump working all the time not on and off like my mom's dishwasher is doing. It needs a drain pump because it makes a funny whining noise when running. So I'm going to order it but I know the on and off is controlled by a circuit board, not the motor. Am I correct in this too. Thanks for your help.
Answer Glenn, Thanks for the question!!! It is can be normal for the pump to alternate between run and stop depending on the model (common on Bosch dishwasher). I can't find any data on your model to support if this is the case or not. If the motor is to run constantly it may be a built-in thermal protector on the drain motor that causes the run and stop the issue. You can measure the electric resistance of the Drain Motor it should be 20-40 ohm. Since the pump is whining(typically an indicator the seal failed) and you are replacing it, I would install the new pump and see what your results are before worrying about any additional issues as they may not exist at that time. Read More... Answered by AppliancePartsPros.com | Saturday, September 11, 2021