When you find the air in your gas dryer not heating up, the culprit could be the timer or electronic control board that controls the heat. A bad heater relay, blown thermal cut-off fuse, faulty thermistor, broken operating thermostat or failed high-limit thermostat can also prevent the dryer from heating. In most gas dryers, a blown thermal fuse will prevent the burner from working.
Additional failures in a gas dryer not heating up could be bad gas valve coils, a failed igniter or a faulty flame sensor. Watch our gas dryer won't heat up troubleshooting video for help getting the burner fixed.
In an electric dryer, a tripped circuit breaker can prevent the dryer from heating even though the motor runs. Our electric dryer won't heat troubleshooting video provides tips to get an electric dryer heating again.
Sometimes the root cause of heating problems is lack of dryer maintenance. Failing to clean lint out of the exhaust system of your dryer can cause the dryer to overheat and blow a fuse so the electric or gas dryer won't heat up at all. Regular dryer preventive maintenance keeps the dryer operating efficiently and helps avoid heating problems.