Whirlpool
Flat-Spotted Rollers or Out-of-Round Drum
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
Worn or flat-spotted drum rollers, Loose drum baffles, Foreign objects stuck in drum seam
How to Fix / Troubleshooting
Safety First: Unplug the dryer before disassembly.
- Check load: First verify the noise is not caused by heavy items (shoes, belts, hardware) in the drum.
- Inspect drum rollers: Remove the front panel and drum. Examine the rollers for flat spots or heavy wear. Replace any suspect rollers.
- Check drum baffles: From inside the drum, inspect the baffles (ribs) for looseness. Tighten mounting screws from inside or outside the drum as required.
- Inspect drum seam: Look for coins or small objects trapped at the drum seam or felt seals. Remove any debris.
- Reassemble and test: Reinstall the drum and panels, then run the dryer to confirm the thumping is resolved.
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Repair Difficulty
Medium
3/5
Required Part
Drum Support Roller Kit
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