Disposal runs but grinds slowly or leaves chunks

A running motor with poor grinding points to a partial jam, impellers (lugs) stuck in place, packed buildup around the grind ring, too little water flow, or worn grind components. On older units a worn grind ring often means replacing the disposal.

Single source ~30 min easyBrands: All

Before you start

  • Turn the disposal off at the switch and breaker (or unplug) before looking or reaching in.
  • Never put a hand in the hopper; use tongs.

Diagnostic steps

Unlock all 4 steps with expected values

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Disposal runs but grinds slowly or leaves chunks · OnCall Tech