Dishwasher is very noisy during operation, with grinding, rattling, or knocking sounds.

Safety first: Open the door carefully mid-cycle; hot steam may escape.

• Check loading: Ensure spray arms can rotate freely without hitting tall items. Rearrange dishes and cutlery to avoid contact.
• Secure loose items: Place small items in the cutlery basket or accessory racks. Avoid stacking dishes.
• Inspect for foreign objects: After stopping the machine, remove filters and check the sump for glass or other debris that could cause grinding.
• Level the appliance: Use a spirit level and adjust the feet so the dishwasher is stable and does not rock.
• Persistent mechanical noise: If noise continues and seems to come from the motor area, the circulation pump bearings may be worn and require replacement.