Humming Without Grinding, or Unusual Noises
A disposal that hums but does not grind is usually jammed or has a motor problem; rattling or clanking often means something hard is caught in the grinding chamber. Stop running it, and never put your hand inside. InSinkErator’s guidance for a jammed disposal shows the steps for its units, and they differ by model, so follow the instructions for yours. If the jam or noise comes back, have the unit checked rather than forcing it.





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