Kenmore Dryer Not Heating: Understanding the Difference Between Gas and Electric
The heating systems in gas and electric Kenmore dryers are fundamentally different, so the diagnostic approach varies by fuel type. This guide covers both, helping you identify the problem efficiently.
Electric Dryer: No Heat
Electric dryers use a resistance heating element — a coiled wire that heats when electric current passes through it. When it burns out, the dryer tumbles normally but produces no heat.
Electric Dryer Diagnostic Sequence
- Check the breaker: Electric dryers require 240V (two 120V legs). If one breaker leg trips, the dryer motor runs (on one 120V leg) but the heating element does not activate (requires both legs). Check both breakers in your panel.
- Test the thermal fuse: A blown thermal fuse is the most common cause of no-heat in electric dryers. The thermal fuse is a one-shot device that blows when the dryer overheats — it must be replaced.
- Test the heating element: If the fuse tests good, test the element for continuity. No continuity = failed element.
- Test the thermostats: The cycling thermostat and high-limit thermostat both interrupt the heating circuit when they fail.
Gas Dryer: No Heat
Gas dryers ignite a gas flame to produce heat. When the gas heating system fails, the drum still tumbles but there is no hot air.
Gas Dryer Diagnostic Sequence
- Check the gas supply: Verify the gas shutoff valve behind the dryer is fully open. Check whether your gas range or water heater are also malfunctioning (indicates a supply issue).
- Test the igniter: The igniter glows hot to ignite the gas. A failed igniter is the most common gas dryer no-heat cause. Visually observe whether it glows orange when the dryer starts.
- Test the gas valve coils: These solenoids open the gas valve when energized. Failed coils prevent gas flow even with a working igniter.
- Test the thermal fuse: Same as electric dryers — a blown thermal fuse also prevents gas dryer heating.