Moen
Worn Grind Ring / Dull Impellers
Moen garbage disposal runs but does not grind food effectively (food remains unprocessed)
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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
Worn stainless steel grind ring teeth, Rounded or dull impeller edges, Jam plate not spinning at full speed due to motor wear, Excessive scale or buildup on grind components
How to Fix / Troubleshooting
Safety first: Turn off power and unplug the disposal before inspection.
- Flush with water:
- Run cold water and operate the disposal for 30–60 seconds to clear loose debris.
- Inspect grind chamber:
- Use a flashlight to examine the grind ring and impellers.
- Look for heavy scale, rust, or visibly worn teeth.
- Clean buildup:
- With power disconnected, use a stiff nylon brush and mild detergent to scrub the grind ring and chamber.
- Do not use your hands or metal tools on the ring while connected to power.
- Evaluate performance:
- If grinding remains weak and the unit is older, the internal grind components or motor speed are degraded.
- Replace the disposal for restored performance.
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Repair Difficulty
Medium
3/5
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