Thermomix Motor or Fan Bearing Noise

Thermomix produces a high-pitched whine or squeal from the motor area 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

Dry or worn motor bearings, Debris in internal cooling fan, Misaligned motor shaft, Early stage of motor failure

How to Fix / Troubleshooting

Safety first: Unplug the appliance before any internal inspection.

  • Determine source: Run the unit briefly at low speed with an empty bowl to confirm the noise comes from the base, not the bowl or blades.
  • Clean vents: Remove dust from vents to ensure the internal fan is not overloaded.
  • Advanced inspection: With the bottom cover removed, inspect the cooling fan for debris and clean carefully. Spin the fan and motor shaft by hand to feel for roughness.
  • Service recommendation: If bearings are noisy or rough, the motor or fan should be replaced by a technician to prevent complete failure.
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Repair Difficulty

Hard 4/5

Required Part

Motor Assembly or Internal Cooling Fan
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