Dishwasher makes loud grinding or rattling noises during the wash cycle.

Safety first: Unplug the dishwasher before inspecting internal components.

• Check for loose items: Ensure cutlery and small items are properly placed in baskets and not protruding into spray arms.
• Inspect spray arms: Spin spray arms by hand to check for contact with dishes or racks. Adjust loading as needed.
• Check sump for debris: Remove filters and inspect the sump for glass shards or hard objects. Remove carefully.
• Inspect circulation pump (experienced users): Access the pump from the bottom. If the noise is from the pump and persists after debris removal, the pump bearings may be worn and the pump should be replaced.

Do not continue running the dishwasher if grinding noise persists, as this can damage the pump.