Our dishwasher turns on, the water gets hot and it drains ok, but the water is not circulating. This has happened once before and after dis-assembling it, we found a marble in the food grinder. Once we put the unit completely back together, it worked fine again for about 6 months. Now we are having the same problem (and I don’t put marbles in the dishwasher any more!) We took it apart and found nothing unusual. The unit is still very clean from the last complete cleaning that we did.
Any idea why the unit won’t circulate the water and what part I might want to try to replace? It sounds like the motor is still trying to work, but there is nothing pumping the water around.