Brandt Mechanical Obstruction / Pump or Spray Arm Noise

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

Foreign object in circulation pump, Spray arm hitting dishes or rack, Worn circulation pump bearings, Loose mounting of pump or motor

How to Fix / Troubleshooting

Safety first: Disconnect power and water before accessing the base. Beware of sharp debris like glass.

  • 1. Check spray arms: Ensure spray arms are not contacting tall dishes or the racks. Rearrange load and test.
  • 2. Inspect sump for debris: Remove filters and look for broken glass, bones, or other objects. Remove carefully.
  • 3. Access circulation pump: Remove the bottom panel and inspect the pump housing. Remove any foreign objects from the impeller area.
  • 4. Evaluate pump bearings: Spin the impeller by hand. If it feels rough or noisy, replace the circulation pump.
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Repair Difficulty

Medium 3/5

Required Part

Circulation Pump
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