Blomberg Air Duct Resonance / Fan or Duct Misalignment

Dryer drum turns but there is a loud roaring or whooshing airflow noise.

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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

Loose blower housing, Misaligned exhaust duct, Damaged or unbalanced fan wheel, Missing duct insulation or padding

How to Fix / Troubleshooting

Safety first: Unplug the dryer before accessing internal ducts.

Excessive airflow noise can indicate loose or misaligned components.

  • Check external vent: Ensure the vent hood flap moves freely and is not creating a whistling noise.
  • Inspect blower housing: Access the blower area and tighten any loose mounting screws. Ensure the housing is properly seated.
  • Check fan wheel: Inspect the fan for cracks or missing blades. Replace if damaged or unbalanced.
  • Inspect internal ducts: Make sure ducts are properly connected and not vibrating against the cabinet. Add padding or clamps where needed.
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Repair Difficulty

Medium 3/5

Required Part

Blower Fan Wheel
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