Garbage disposal turns on but makes a loud metal-on-metal grinding or screeching noise

Safety First: Turn OFF the wall switch and circuit breaker. Never reach into the disposal with power connected.

• Inspect with a flashlight: Look down the sink opening and identify any foreign objects such as utensils, screws, or glass.
• Remove debris safely: Use long-nose pliers or tongs to remove objects. Do not use your fingers.
• Check impeller lugs: Gently push each impeller lug with a wooden spoon handle. They should pivot freely. If a lug is stuck or visibly broken, the grinding plate assembly is damaged.
• Test with water: Restore power, run cold water, and briefly turn ON the unit. If the screeching persists without foreign objects present, the grind ring or bearings may be damaged.
• Replace if necessary: Waste Maid disposals are generally not serviced at the component level; replace the entire disposal if internal grinding components are damaged.