Dryer Not Heating: Troubleshooting Electric and Gas

A dryer that tumbles but does not heat leaves clothes wet and wastes energy. Causes differ between electric and gas models.

Electric Dryer No Heat

Check the Basics First

Power Supply:

Electric dryers need 240V

Partially tripped breaker may allow tumbling but not heating

Reset both breaker halves

Thermal Fuse:

Safety device that blows if dryer overheats

Common cause of no heat

Located near exhaust duct

Must be replaced if blown

Heating Element:

Coils can break over time

Element may partially fail

Replacement is common repair

Lint and Airflow

Clogged lint trap

Blocked exhaust duct

Crushed vent hose

Gas Dryer No Heat

Gas-Specific Checks

Gas Supply:

Verify gas valve is open

Check other gas appliances work

Smell for gas leaks (call professional if detected)

Igniter:

Glows to light gas

May glow but not ignite

Visible through inspection window

Flame Sensor:

Detects flame presence

Failure prevents ignition

Common gas dryer repair

Gas Valve Coils:

Allow gas flow when igniter ready

May work when cold, fail when hot

Replace in sets

Both Types: Ventilation Check

Poor ventilation causes overheating and safety shutoffs:

• Disconnect and inspect vent hose
• Check exterior vent flap
• Clean entire vent run annually
• Ensure vent is not crushed

When to Call Professional

• Gas leak suspected
• Burning smell
• Multiple troubleshooting attempts failed
• Electrical testing needed