Symptoms
- Clothes smell musty even though they feel dry
- Sour or mildew smell noticeable right when opening the dryer
- Smell is present across different loads
- Towels and gym clothes smell worse than other items
Likely causes
- CommonOdor transferred from the washerA washer with mold or mildew buildup passes odor onto clothes that drying heat won't remove.
- CommonClothes left damp too long before dryingBacteria growth from sitting wet in the washer or hamper causes a smell that heat sets rather than removes.
- PossibleDirty or musty-smelling dryer drumA drum that hasn't been wiped down can harbor odors, especially in humid environments.
- PossibleVent not properly exhausting moist air outsideA disconnected or blocked vent can push humid air back into the drum, encouraging odor.
- PossibleOverloading preventing full dryingPartially dried clothes packed too tightly can retain a damp, musty smell.
What to do
- Check that clothes go from washer to dryer promptly, ideally within 30 minutes of the wash cycle ending.
- Run an empty hot cycle in the washer with washing machine cleaner or white vinegar if you suspect washer odor.
- Wipe down the inside of the dryer drum with a damp cloth and mild detergent, then let it air out with the door open.
- Confirm the dryer vent hose is properly connected and not disconnected or crushed behind the unit.
- Rewash the smelly items in hot water with an extra rinse before drying again.
- Reduce load size to ensure clothes dry fully and don't retain trapped moisture.
- If odor persists after cleaning both machines, consider having the washer's door seal and drain checked, since front-load washers are especially prone to mildew.
Tools and parts
- Cloth
- Mild detergent or white vinegar
When to call a pro
If cleaning both the washer and dryer doesn't resolve persistent odor, a washer repair technician can check for a moldy door seal or drain issue.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.