If your dryer is running but not producing heat, the issue could be caused by a faulty heating element, a malfunctioning thermostat, a broken thermal fuse, or a clogged vent. Gas dryers may also have problems with the igniter or gas valve coils. Check if the dryer vent is clear, as restricted airflow can prevent proper heating. If troubleshooting doesn’t resolve the issue, a dryer repair service can diagnose and fix the problem efficiently.