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

Safety first: Unplug the dishwasher before reaching into the sump or removing parts.

• Check loading: Ensure tall utensils or pans are not obstructing the spray arms. Manually spin the arms to check for interference.
• Inspect spray arms: Remove and check for cracks or loose end caps that could rattle. Replace damaged spray arms.
• Check sump for debris: Remove filters and look for broken glass, bones, or hard objects. Remove carefully to avoid injury.
• Listen to pump: If the noise is a constant grinding from the base, the circulation pump bearings may be worn. Replace the circulation pump if noise persists after clearing debris.