Symptoms
- Distinct rubbery burning smell during operation
- Smell strongest when the dryer first starts
- Possible squealing sound along with the smell
- Smell fades when the dryer is turned off
Likely causes
- CommonSlipping or misaligned drive beltA belt that's stretched, glazed, or off-track rubs against a pulley or the drum, generating friction heat and smell.
- CommonWorn idler pulley not tensioning the belt correctlyWithout proper tension, the belt can slip and rub, producing heat and odor.
- PossibleBelt rubbing against a foreign object or debrisSomething caught near the belt path can cause friction and a burning smell.
- Less commonMotor pulley misalignmentA shifted or loose motor pulley can throw off belt alignment.
What to do
- Unplug the dryer as soon as you notice a burning rubber smell.
- Let it cool, then remove the front or top panel per your model to access the belt and pulleys.
- Inspect the belt for glazing (a shiny, hardened look), fraying, or visible wear.
- Check the idler pulley for looseness, wobble, or resistance when spun by hand.
- Look for any debris or foreign material near the belt's path around the drum.
- Replace the belt and idler pulley together if either shows wear, since they typically wear as a pair.
- If you're not comfortable accessing the belt yourself, have a technician replace it before using the dryer again.
Tools and parts
- Nut driver or screwdriver set
Dryer drive beltSearch: “dryer drive belt replacement”
Dryer idler pulleySearch: “dryer idler pulley”
When to call a pro
If you're not comfortable opening the cabinet to inspect the belt, have a technician replace it promptly to avoid a full belt failure.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.