Viking Foreign Object in Pump / Spray Arm Interference

Dishwasher makes loud grinding or rattling noises during wash.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Debris in Viking circulation pump impeller, Broken glass or bones in sump, Spray arm hitting tall dishes, Worn pump bearings

How to Fix / Troubleshooting

Safety first: Turn off power before reaching into the tub or sump.

  • Check spray arms: Spin both spray arms by hand. Ensure they rotate freely and are not contacting racks or tall items. Adjust loading as needed.
  • Inspect sump: Remove filters and shine a light into the sump. Carefully remove foreign objects with needle-nose pliers.
  • Access circulation pump: If noise persists, remove the Viking circulation pump and inspect the impeller and housing for damage or debris. Replace the pump if bearings are noisy or impeller is damaged.
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Repair Difficulty

Medium 3/5

Required Part

Viking Dishwasher Circulation Pump
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