Quick Checks
Check the Pockets
Before anything else, make sure there are no loose objects like coins, buttons, or keys in the drum. These can create a racket as they bounce around.
Inspect the Drum Seam
Run your hand along the inside of the drum seam. A loose or separating seam can cause a thumping noise.
Ensure Dryer is Level
A dryer that's not level can vibrate excessively. Use a level and adjust the legs until it sits firmly and evenly on the floor.
Common Causes
Worn Drum Support Rollers
DIYThese rollers support the drum as it spins. Over time, they can wear out, causing a rumbling or grinding noise. Replacing them is a common repair.
Damaged Drum Belt
DIYThe drum belt rotates the dryer drum. If it's frayed, cracked, or worn, it can slap against the dryer cabinet, creating a rhythmic thumping or squealing sound.
Worn Idler Pulley
DIYThe idler pulley keeps tension on the drum belt. A worn bearing in the pulley can cause a high-pitched squealing or chirping noise.
Failing Blower Wheel
DIYThe blower wheel circulates air through the dryer. If it's cracked, loose, or obstructed, it can cause a rattling or vibrating noise, and potentially reduce drying performance. Lint buildup is a common culprit.
Motor Problems
Call ProThe dryer motor itself could be failing. This can manifest as a humming, grinding, or screeching noise. Motor replacement is best left to a professional.
Clogged or Restricted Vent
DIYA blocked vent forces the dryer to work harder and can cause unusual noises due to increased backpressure and overheating. In LG dryers, you might see a D80 or D90 error code.
When to Call a Professional
- If you're uncomfortable disassembling the dryer.
- If the noise is accompanied by a burning smell.
- If you suspect the motor is failing.
- If you've replaced parts and the noise persists.
Safety Warning
Always disconnect the dryer from the power outlet before attempting any repairs. If you smell gas, immediately shut off the gas supply and call your gas company or a qualified technician.
Estimated Repair Cost
$150 - $400 for most dryer noise-related repairs. Motor replacements or complex vent issues may be higher.