InSinkErator Impeller Lugs Stuck / Plate Spinning Without Agitation

Disposal is unusually quiet and appears to run, but food is not being ground or discharged

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Possible Causes

Impeller lugs seized by corrosion, Food packed tightly around impellers, Long-term lack of use causing sticking

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker.

  • Free impellers: From above, use a wooden dowel or spoon handle to gently push each impeller lug to ensure it swings freely. Do not use your hands.
  • Rotate plate: Use the bottom hex socket to rotate the grind plate while moving the impellers to break free any sticking.
  • Flush and test: Run water and test with a small amount of soft food. If grinding action returns, resume normal use.
  • If impellers remain stuck: Internal corrosion may be severe. Replace the disposal.
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Repair Difficulty

Easy 2/5
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