Maytag Corporation Informative - Grinding Noise
MONROE, LOUISIANA -- About a week ago my dishwasher started making a very loud grinding/ vibrating noise when starting and running. Remove Electrical Power to Dishwasher!!! Took all baskets, sprayers out from inside. Removed step by step the plastic housing with a S1 star head driver. Finally got down to the grinder blade and found a 1/2" square plastic piece of rubber sitting beside the small grinder blade. No CLUE where this came from, but remove and reassembled. Test run dishwasher and unit sounded like a Church Mouse!!! :):)
So if having similar sounds check to see if anything is near grinder blade.
Noisy culprit found near the grinder blade