Garbage disposal runs but does not grind food effectively; food remains in the chamber or drains slowly away unprocessed.

Safety first: Turn off power before inspecting the grinding chamber.

• Inspect grinding surfaces: With a flashlight, look at the impeller lugs and shredder ring. If they appear rounded, smooth, or heavily corroded, grinding efficiency will be reduced.
• Clean buildup: Run a mixture of ice cubes and coarse salt through the disposal with cold water to help remove some buildup. Do not expect this to restore severely worn parts.
• Avoid hard items: Do not grind bones, fruit pits, or other very hard items that accelerate wear.
• Evaluate performance: If food still remains unground after cleaning, the grinding components are likely at end of life.

Worn grinding components are not typically replaceable separately; replacing the Maxmatic disposal is usually the most practical solution.