Stop the dryer and unplug it, and turn off the gas on a gas dryer. Don't use it again until you know why. The most common cause is lint overheating in the vent, the lint-trap housing or near the heater. Others are a worn belt or rollers, a failing motor, or a damaged wire or plug. A faint dusty smell the first time you use a new dryer, or one that sat unused, is usually normal and fades within a load or two.
What to do right now
- Stop the dryer and unplug it. On a gas dryer, turn the gas valve off too.
- If you see smoke or flames, keep the dryer door closed, get everyone out, and call 911 from outside.
- If there's no smoke, feel the top and sides of the dryer. Very hot means the heat had nowhere to go.
- Take the load out once it has cooled, and check pockets and fabrics for anything that melted.
- Don't run it again until you've found the cause. The checks below will usually point to it.
What the smell tells you
| Smell | Likely cause | What to do |
|---|---|---|
| Hot, dusty, like burnt toast | Lint overheating in the vent or near the heater | Check airflow outside; have the vent cleaned |
| Burning rubber | A slipping or worn drive belt, or something caught by the drum | Appliance repair |
| Hot plastic or electrical | A damaged wire, plug, outlet or motor | Leave it unplugged; appliance repair or electrician |
| Melted wax, crayon or gum | Something left in a pocket | Clean the drum when cool |
| Faint and dusty, first use only | Factory coating or dust on the heater | Normal if it fades within a load or two |
| Rotten eggs | A gas leak | Leave the house and call the gas company |
Why lint is usually the cause
A dryer pushes hot, damp air out through the vent. When lint narrows the vent, the hot air backs up, the dryer runs hotter, and some lint escapes into the cabinet around the heater. Lint burns easily, so that's where the smell comes from.
The U.S. Fire Administration found that failure to clean is the leading factor in home clothes dryer fires. The CPSC also warns that lint buildup in the dryer or vent blocks airflow and causes excessive heat. If your clothes have also been taking longer to dry, a clogged vent is very likely. See the signs of a clogged dryer vent.
In Florida, humid air makes lint sticky, so it builds up on the duct walls faster than in drier places. A crushed hose behind the dryer, or a stuck flap at the outside cap, can cause the same overheating even in a clean duct.
Safe checks you can do
With the dryer unplugged and cool:
- The lint screen. Clean it, and look for a waxy film from dryer sheets. Wash it if water doesn't pass through.
- The lint-trap opening. Shine a light into the slot. Packed lint there is a sign of a blocked vent.
- The hose behind the dryer. Pull the dryer out and check for crushing, tears or lint at the joints. Replace foil or vinyl. See dryer vent hose types.
- The outside cap. Look for lint, a nest, or a flap that's stuck shut.
- Airflow. Plug back in, run on air-only (no heat) for a minute, and feel for strong air at the outside vent. Weak air means a blockage.
Leave the inside of the dryer cabinet to an appliance technician. Taking panels off exposes wiring and, on gas dryers, the burner.
Gas dryers: burning smell vs. gas smell
A burning smell and a gas smell are different problems. Gas has a rotten-egg smell added to it. If you smell that, don't touch switches or unplug anything. Leave, and call your gas company or 911 from outside.
A gas dryer with a blocked vent can also push carbon monoxide back into the house, which has no smell at all. Every home with a gas dryer should have a working CO alarm. See gas dryers and carbon monoxide.
Who to call
| If | Call |
|---|---|
| Weak air outside, long drying times, hot laundry room | A dryer vent cleaner |
| Rubber smell, squealing, thumping, or the drum won't turn | An appliance repair technician |
| Electrical smell, scorched plug or outlet, tripping breaker | An electrician or appliance technician |
| Rotten-egg smell | Your gas company, from outside |
| Smoke or flames | 911 |
Not sure if it's the vent? We measure the airflow before we clean, so you'll know whether the vent was the problem. If it wasn't, we'll tell you, and you'll know to call an appliance tech.
Smelled burning? Get the vent checked
Same-day dryer vent service across Pinellas County. Standard cleaning from $99, airflow tested before and after, price before any extra work.
Clearwater team
1727 Coachman Plaza Dr
(727) 454-0061
Clearwater area
Largo team
13801 Walsingham Rd
(727) 662-5045
Largo area
Seminole team
7821 Seminole Blvd
(727) 855-3490
Seminole area
Questions
Is it safe to use my dryer if it smells like burning?
No. Unplug it and find the cause first. A burning smell means something is overheating, and lint near the heater can catch fire.
Why does my new dryer smell like burning?
New dryers often give off a faint smell from factory coatings on the heater for the first load or two. If it is strong, gets worse, or lasts longer, stop and call the installer.
Can a clogged dryer vent cause a burning smell?
Yes. It is the most common cause. Trapped heat makes the dryer run hotter, and lint that escapes into the cabinet can scorch near the heater.
Why does my dryer smell burnt after sitting unused?
Dust settles on the heater and burns off on the first run. A faint smell that is gone within a load is normal. If it keeps coming back, check the vent.
Can dryer sheets cause a burning smell?
Not directly, but they leave a waxy film on the lint screen that blocks airflow and makes the dryer run hotter. Wash the screen every few months.
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