Hoover Pump Bearing Wear / Motor Noise

Dishwasher makes a high-pitched squealing or whining noise during operation.

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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

Worn circulation pump bearings, Worn drain pump bearings, Cavitation due to low water level, Foreign object partially contacting impeller

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing the base.

  • Confirm source: Listen carefully to determine if the noise occurs during wash (circulation pump) or drain (drain pump).
  • Check water level: Ensure the machine is filling to the correct level; low water can cause cavitation noise. If low, investigate inlet issues.
  • Inspect pumps: Access the base and check both pumps for play in the shafts or signs of leakage. A squealing sound often indicates failing bearings.
  • Replace noisy pump: Replace the affected circulation pump or drain pump to prevent complete failure and leaks.
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Repair Difficulty

Hard 4/5

Required Part

Circulation Pump
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