Garbage disposal is excessively loud compared to when it was new, with a harsh grinding sound even under light load.

Safety first: Turn off power before inspecting the chamber.

• Step 1 – Inspect interior: Use a flashlight to look for pitting, rust, or rough surfaces on the grind ring and chamber walls.
• Step 2 – Check impeller arms: Gently move each impeller with a wooden tool. They should pivot but not be excessively loose.
• Step 3 – Clean buildup: Remove mineral and grease buildup with a brush and mild cleaner.
• Step 4 – Evaluate noise: If the harsh sound persists and components appear heavily worn or corroded, plan to replace the disposal; internal parts are not typically replaceable.