Dishwasher makes a loud knocking or banging noise when changing between wash and drain.

Safety first: Turn off power and water before adjusting hoses.

• 1. Inspect hoses: Pull the dishwasher out slightly and check that the inlet and drain hoses are not banging against the cabinet sides when water flows.
• 2. Secure hoses: Use clips or foam padding to secure hoses away from hard surfaces.
• 3. Water pressure: If household water pressure is very high, consider fitting a pressure reducer on the supply line.
• 4. Internal hoses: If noise seems to come from inside the base, remove the lower panel and ensure internal hoses are clipped properly.
• 5. If unresolved: Persistent loud banging may require a plumber to address water hammer in the home plumbing.