Dryer
6 min read
Appliance Marketplace Team

Dryer Not Heating? 6 Causes You Can Diagnose in 10 Minutes

Clothes coming out wet after a full cycle? Here are the 6 most common reasons a dryer stops heating — and how to check each one safely.

Safety First

Dryers are the #1 cause of appliance-related house fires in Canada. If you smell burning, see smoke, or the exterior of the dryer is extremely hot, unplug it immediately and call a professional.

1. Clogged Dryer Vent (Most Common)

A clogged vent restricts airflow, causing overheating and eventually blowing the thermal fuse. If your dryer is not heating, always start by checking the vent for lint buildup.

2. Blown Thermal Fuse

A one-time safety device that blows when the dryer overheats — usually due to a clogged vent. Once blown, the dryer runs but produces no heat. Must be replaced (not reset). Repair cost: $140–$220.

3. Failed Heating Element (Electric)

The most common heat-related failure in electric dryers. Elements burn out over time and must be replaced. Repair cost: $200–$340.

4. Bad Igniter or Flame Sensor (Gas)

Gas dryers use an igniter to light the gas valve. A failed igniter or flame sensor prevents heat from being produced. Repair cost: $180–$300.

5. Failed Cycling Thermostat

Regulates the on/off cycle of the heating system. When it fails, the dryer either overheats or fails to heat. Repair cost: $150–$260.

6. Broken Timer or Control Board

On older dryers, a bad timer can prevent the heat circuit from engaging. On modern dryers, a failed control board is the culprit. Repair cost: $220–$420.

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Tags:#dryer#not heating#safety