I recently moved into a 2 y.o. previously owned home. The dishwasher is a GE Quiet Power 1 model. After being in the home for 2 months, the dishwasher suddenly started making a low hum/grinding type noise. It's not continuous, happening intermittently regardless of where it is in the wash cycle. Also, when it occurs, it oscillates - grrr, grr, grr, etc. rather than a continuous grrrrrrrrrrrrrrrrr... Thought it might have something to do with the ''bearings'' in the spray bar???
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