Blomberg Out-of-Round Drum or Worn Drum Rollers

Dryer makes a loud thumping or banging noise as the drum turns.

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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

Flat-spotted drum rollers, Damaged drum seam, Foreign object stuck to drum, Loose baffles inside drum

How to Fix / Troubleshooting

Safety first: Unplug the dryer before inspecting the drum.

Thumping noises often indicate uneven drum support or something hitting the cabinet.

  • Check load: Run the dryer empty. If the noise disappears, the cause may be heavy items (shoes, belts) hitting the drum. Use a drying rack or remove such items.
  • Inspect drum rollers: Access the rollers and check for flat spots or uneven wear. Replace if damaged.
  • Inspect drum surface and seam: Rotate the drum by hand and look for dents, raised seams, or foreign objects stuck to the drum exterior. Correct or remove as needed.
  • Check drum baffles: Inside the drum, ensure the plastic or metal baffles are securely fastened. Tighten screws or replace cracked baffles.
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Repair Difficulty

Medium 3/5

Required Part

Drum Support Roller Kit
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