Thermador Mechanical Noise from Fan or Loose Components

Oven makes loud banging, rattling, or grinding noises 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 convection fan motor bearings, Loose fan blade or mounting screws, Loose oven panels or racks, Debris caught in fan

How to Fix / Troubleshooting

Safety first: Turn off power and allow the oven to cool before inspecting moving parts.

  • Identify noise source: Note whether the noise occurs only in convection mode (fan-related) or all modes (could be panels or racks).
  • Check racks and panels: Ensure racks are properly seated and not vibrating against each other. Tighten any loose screws on internal panels.
  • Inspect fan: Remove the convection fan cover and check for loose screws or debris in the fan blades. Tighten and clean as needed.
  • Motor replacement: If the fan motor is noisy or has play in the shaft, replace the convection fan motor.
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Repair Difficulty

Medium 3/5

Required Part

Convection Fan Motor
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