Al's Appliance technician repairing a dryer that is not heating

Dryer Not Heating? Common Causes, Simple Checks, and One Serious Safety Warning

May 22, 2026•2 min read
Al's Appliance technician repairing a dryer that is not heating

A dryer that tumbles but never heats, or takes two or three cycles to dry a single load, is one of the most common service calls we get in Kitchener and Guelph. Sometimes the fix is simple. Sometimes it is a worn part. And in one common case, it is a genuine fire hazard. Here is how to tell the difference.

First, the Safety One: A Clogged Vent

If your dryer runs hot, shuts off mid-cycle, or clothes come out damp and the laundry room feels humid, the exhaust vent may be blocked with lint. This is not just a performance problem. Lint buildup in dryer vents is one of the leading causes of household fires in Canada. Disconnect the duct behind the dryer and check it, and inspect the exterior vent flap outside the house. If you cannot remember the last time the vent line was cleaned, get it done.

Simple Checks Before You Call Anyone

Clean the lint screen, and wash it with soap if dryer sheets have left a film. Confirm the dryer is not set to air fluff or eco mode by accident. For electric dryers, check the breaker. Dryers use a double breaker, and if one half trips, the drum spins but the element gets no power. For gas dryers, confirm the gas supply is on.

The Worn Parts That Kill the Heat

If the basics check out, one of these components has usually failed. The heating element (electric models) burns out with age. The thermal fuse blows when the dryer overheats, often because of a clogged vent, and the dryer will not heat again until it is replaced. The cycling thermostat can fail and cut heat prematurely. On gas dryers, the igniter or gas valve coils are the usual suspects. All of these are standard, affordable repairs for a technician with the right part on hand.

Repair or Replace?

Dryers are mechanically simple and typically last 10 to 13 years. A heating element or thermal fuse on a mid-life dryer is absolutely worth fixing. If your dryer is past a decade and this is its second or third issue, ask us about our new and used dryer inventory before you sink more money in.

Dryer Repair Across Kitchener, Waterloo, Cambridge and Guelph

Al's Appliance provides fast in-home dryer repair throughout the region, and we will tell you honestly if a repair is not worth it. Call 519-824-8828 or visit alsappliance.ca to book a visit, and stop running every load twice.

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Head Office: 6 Holliday Street Guelph, Ontario N1H 4Z6

Showroom: 20 Stewart St. Kitchener On. N2G 2E4

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