Rangemaster Reduced Grinding Efficiency

Garbage disposal runs but leaves large food particles unground and pushes them into the drain.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Blunt impeller lugs, worn shredder ring teeth, low motor torque due to capacitor or winding issues, overloading with inappropriate waste

How to Fix / Troubleshooting

Safety first: Turn off power before inspecting the chamber.

  • Inspect grinding components: Look at the shredder ring and impeller lugs for rounding or chipping. Excessive wear reduces grinding efficiency.
  • Adjust usage: Cut large items into smaller pieces and avoid fibrous or very hard materials. Feed waste gradually with plenty of cold water.
  • Capacitor check: If the motor sounds weak or slows easily, inspect and replace the start/run capacitor if fitted.
  • Replace if worn: If the grinding components are visibly worn, the most practical solution is replacement of the disposal, as internal parts are not typically user-replaceable.
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Repair Difficulty

Medium 3/5

Required Part

Shredder ring and impeller assembly
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