Bertazzoni
Convection Fan Bearing or Obstruction Failure
Oven makes loud rattling or grinding noise when convection fan is running
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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, Debris caught in fan, Bent fan blade
How to Fix / Troubleshooting
Safety first: Turn off the oven, disconnect power, and allow it to cool completely.
- Access fan: Remove the convection fan cover inside the oven (usually held by screws). Inspect the fan blade and surrounding area.
- Remove debris: Clear any loose screws, foil, or food debris from around the fan.
- Check blade: Ensure the fan blade is tight on the motor shaft. Tighten the retaining nut if loose.
- Spin test: Rotate the fan by hand; if it feels rough or wobbles, the motor bearings are likely worn and the motor should be replaced.
Note: Do not bend the fan blades; replace the blade if damaged.
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Repair Difficulty
Medium
3/5
Required Part
Convection Fan Motor
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