Disposal produces a loud, low-frequency vibration that shakes the sink and countertop.

Safety first: Turn off power at the breaker before touching the unit.

• Check mounting: From under the sink, verify that the mounting ring is fully locked and all screws are evenly tightened.
• Inspect rubber gasket: Ensure the rubber sink mount and isolation gasket are intact and properly seated.
• Clear chamber: Remove any large, unground items and run the unit with water only to see if vibration improves.
• Internal damage: If vibration persists with an empty chamber, the grinding plate may be bent and the grinding assembly or entire unit may need replacement.