dishwasher also makes a buzzing noise , just wondering if this a bad motor and where to get one cheap and also a part number if this is do able
Pull out spray arm and remove pump cover, loosen torq screws.
Sponge out all the water by the half round pump cover, then remove pump cover and remove the rest of the water.Remove any thing jamming the impeller.
If nothing found, turn water supply off and turn dishwasher on. Open dishwasher door and observe motor impeller. If turning the wrong way, you have a polled sidewinder motor.You will need a new one.
Please post results.