Dishwasher is very noisy during operation; grinding, rattling, or loud humming sounds.

Safety: Disconnect power before accessing internal components.

• Check loading: Open the door mid-cycle (after pausing) and verify that spray arms are not hitting tall pots or utensils. Reposition items.
• Inspect spray arms: Spin arms by hand to ensure they rotate freely and are not warped or cracked.
• Check for debris in pump: Remove the filter and inspect the sump. If noise persists, access the circulation pump and check for foreign objects in the impeller.
• Secure panels: Tighten any loose screws on side panels, toe kick, and mounting brackets to reduce vibration noise.
• Replace noisy pump: If the pump bearings are worn and the noise is internal, replace the circulation pump assembly.