Dishwasher vibrates excessively or moves within the cabinet during operation.

Safety first: Disconnect power before adjusting installation hardware.

• Level the unit: Place a spirit level on the top front edge of the dishwasher. Adjust the front and rear leveling feet until the unit is level side-to-side and front-to-back.
• Secure to cabinet: Ensure the mounting brackets at the top or sides are firmly screwed into the countertop or cabinet walls.
• Check loading: Avoid placing very tall items that can be struck by the spray arms, causing vibration. Reorganize dishes to allow free arm rotation.
• Inspect floor: If the floor is uneven or flexible, consider adding shims under the feet to stabilize the appliance.

Proper leveling and securing usually eliminate vibration issues.