Dishwasher not spraying or making loud buzzing noise? Replace the pump and motor assembly. Moderate DIY repair takes 2-3 hours with basic tools.
Do-It-Yourself Stories from Customers like You
Whirlpool dishwasher makes loud buzzing noise when the motor/pump runs Stephen H. • Gainesville , FL • December 14, 2014
Checked the grinder/pump well at the bottom of the dishwasher and fished out some aluminum foil, wire twist ties, broken plastic forks, etc. That was fun but it didn't solve the problem.
Purchased new pump & motor assembly and installed it as per Youtube video. It requires pulling out the dishwasher, disconnecting electric, hotwater, and drain lines, and then removing a bunch of clips and connectors. That was time consuming but basically easy ... except that seating the new assembly gasket...
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