If a dryer smells of burning while running, stop it, unplug it at the wall, and do not use it again until you have found the cause. Do not wait to see if the smell passes.
What to do in the first five minutes
- Stop the cycle and unplug the machine
Do this before anything else, even before opening the door. If the dryer is gas powered, also be alert for any smell of gas specifically — that is a different and more urgent situation, covered below.
- Let it cool
Do not open the door immediately on a machine that has been running hot. Give it a few minutes.
- Check for visible smoke, scorching or embers
Once it is safe to look, check inside the drum, in the lint trap, and as far into the vent opening as you can see. If you find smoke, glowing embers, or scorched fabric, treat this as a fire risk — do not simply clean up and restart.
- Do not restart it to test
Restarting a machine that has just produced a burning smell to see if it happens again is how a contained problem becomes an uncontained one.
Common causes, most likely first
| Cause | How likely | What it smells like |
|---|---|---|
| Lint trap or vent heavily clogged | Very common | Hot, dusty smell, worse as the cycle goes on |
| A foreign item touching the heating element | Common | Distinct scorching smell, may be intermittent |
| New dryer or one unused for a long time | Common | Faint smell from protective coatings burning off — should fade within a few cycles |
| Belt slipping against the drum or motor | Occasional | Rubbery, burning-rubber smell rather than dusty |
| Electrical fault at a wire or connection | Occasional | Sharp, acrid, hot-plastic smell |
| Bearing or roller overheating from friction | Occasional | Hot metal or oily smell, often with noise too |
How to check safely
Do not inspect the drum, lint trap or vent with the dryer connected to power.
- Clean the lint trap thoroughly
Remove all lint, then wash the screen under a tap — a film of fabric softener residue can build up invisibly and is itself flammable. Let it dry fully before refitting.
- Check inside the drum for anything touching the element housing
A stray item — a shoelace, an underwire, a small toy — pressed against the heating element housing will scorch and produce exactly this smell. Remove anything you find.
- Disconnect and inspect the vent duct
Pull it off the back of the machine and look for a solid lint blockage. A heavily restricted vent forces heat to build inside the cabinet, and that heat has to go somewhere — this is one of the most common root causes of a genuine burning smell, not just a slow-drying complaint.
- Smell for the specific type of odour
Dusty and hot points at lint. Sharp and like burning plastic or electrical components points at wiring, and is the one that most warrants stopping and calling an engineer rather than continuing to investigate yourself. Rubbery points at a slipping belt.
- Check the outside vent termination
Confirm the exterior wall flap opens freely and nothing — a bird’s nest, leaves, snow — is blocking it from outside.
A new dryer or one that has not run in a while
A faint burning smell for the first few cycles of a brand-new dryer, or one that has sat unused for a long period, is usually protective oils or dust on the heating element burning off. This should be mild and should fade noticeably within two or three cycles. If it does not fade, or if it is strong rather than faint, treat it as a genuine fault rather than assuming it will resolve itself.
When to call a professional
Call an electrician or appliance engineer immediately for any smell that is sharp, chemical or plastic-like rather than dusty; for any visible scorching, melted components or exposed wiring; if the smell persists after a thorough lint and vent clean; or if the dryer trips the breaker at the same time. For a gas dryer, if you smell gas specifically rather than a general burning smell, leave the property if you can do so safely and contact your gas utility’s emergency line rather than investigating further yourself.
Stop and call a qualified appliance technician or electrician if you find scorched or melted wiring, smell burning, see water that has reached electrical components, or if the fault returns immediately after a repair. Never bypass a safety device — thermal fuses, door interlocks and flood switches fail for a reason, and defeating one converts a broken appliance into a fire or flood risk.
