Dryer Not Heating or Taking Forever to Dry?
Why it happens, the checks that fix it fast — and the one maintenance step that also prevents fires. A practical guide for Toronto & GTA homeowners.
Two loads to get one batch dry, clothes that come out warm but still damp, or a dryer that tumbles with no heat at all — these are among the most common laundry complaints we hear across the GTA. Most long-dry-time problems come down to one thing: airflow. And restoring it is often something you can do yourself.
Here’s how to tell a quick fix from a repair.
First, the airflow checklist
Restricted airflow is the number-one cause of a dryer that takes too long — and a clogged vent is also the leading cause of dryer fires, so these checks are worth doing regardless.
Quick checks anyone can do
- Clean the lint trap — really clean it. Remove the screen and clear the lint every load. Once in a while, wash the screen with soapy water: dryer-sheet residue coats it invisibly and chokes airflow.
- Check the vent hose behind the dryer. Pull the dryer out, detach the hose, and look for packed lint, crushing, or kinks. Clear it out and make sure it isn’t squashed against the wall.
- Check the outside vent flap. Go outside and confirm the exterior vent opens and pushes out warm air when the dryer runs. Birds’ nests and lint often block it.
- Don’t overload. A packed drum can’t tumble clothes through the hot air. Try a smaller load and separate heavy items like towels.
- Confirm the settings. Make sure it’s not on Air Fluff / No Heat, and that an Eco or Auto-dry sensor cycle isn’t ending early.
If airflow is clear and it still won’t heat or dry, the cause is usually a component — and that’s where a technician comes in.
The most common mechanical causes
A failed heating element or gas igniter
If the dryer tumbles but produces no heat at all, an electric dryer’s heating element or a gas dryer’s igniter has often failed. Both are common, repairable parts.
A tripped thermal fuse
A thermal fuse is a safety device that cuts the heat if the dryer overheats — and it usually blows because a clogged vent made the dryer run too hot. Replacing the fuse without clearing the vent just leads to another blown fuse, so the two go together.
A worn thermostat or coated moisture sensor
Cycling and high-limit thermostats regulate temperature; when they drift, heat becomes weak or inconsistent. On sensor-dry models, a lint-coated moisture sensor can misread the load and shut the cycle off while clothes are still damp.
A worn drum belt or blower
If the drum won’t turn, or you hear a loud rumble, a stretched drum belt or a failing blower wheel may be to blame — both restrict the movement of hot air even when the heat is working.
The maintenance step that pays for itself
Have your dryer vent professionally cleaned about once a year — more often for large households. It cuts drying time, lowers your energy bill, extends the life of the dryer, and dramatically reduces fire risk. It’s the single best thing you can do for a dryer that’s slowing down.
When to call a professional
- The dryer runs but produces no heat at all
- It keeps blowing thermal fuses or shutting off mid-cycle
- Clothes are still damp after a full cycle with a clean vent
- You smell gas, burning, or hot lint
- The drum won’t turn or the dryer is loud (see our repair-or-replace guide)
Dryer running cold or slow? We fix it fast.
Best Appliance Repairs services all major dryer brands — electric and gas — with same-day and next-day appointments across the GTA.
- ✔ Family-owned & operated for 10+ years
- ✔ 5.0 on Google & 400+ five-star reviews across all platforms
- ✔ Licensed, insured technicians — honest, upfront pricing
- ✔ Free service call* with every repair — plus $25 off
Frequently asked questions
Why is my dryer not heating up?
If the drum tumbles but there’s no heat, the most common causes are a failed heating element (electric) or igniter (gas), a blown thermal fuse from a clogged vent, or a worn thermostat. Clear the vent first, then have the heating parts tested.
Why does my dryer take two cycles to dry clothes?
Almost always restricted airflow — a lint-coated screen, a clogged vent hose, or a blocked exterior vent. Clean all three. If drying time doesn’t improve, a weak heating element or a coated moisture sensor may be the cause.
How often should a dryer vent be cleaned?
About once a year, or more often for large or frequent loads. It shortens drying time, lowers energy use, and significantly reduces the risk of a dryer fire.
Is it worth repairing a dryer that won’t heat?
Usually yes — dryers average 10–13 years, and heating elements, igniters, fuses, and belts are common, affordable repairs. Check the 50% rule in our repair-or-replace guide.
Serving Toronto and the Greater Toronto Area. *The service call fee is applied toward the cost of your repair.