Dryer Not HeatingWhen a dryer stops producing heat, it almost always comes down to just a few common issues. The most frequent culprit is poor airflow. A clogged lint screen or a blocked vent prevents hot air from moving through the drum, so the dryer’s safety systems shut off the heat to prevent a fire. The next thing to check is the power or gas supply. Electric dryers need a full 240 - volt circuit; if one side of the breaker trips, the drum will turn but there will be no heat. Gas dryers won’t heat if the gas valve is closed or the supply line is off.
Another common cause is a blown thermal fuse. This one‑time fuse protects the dryer from overheating; if it blows, the dryer will tumble but stay cold. Electric models also rely on a heating element, which can burn out over time. Gas models depend on an igniter and gas valve solenoids to light the burner; if the igniter or solenoids fail, the flame won’t light and there will be no heat. Less common, but still possible, is a faulty thermostat or control that mistakenly shuts off heat even when it’s needed.
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