Replace the old thermal fuse with a new one.Use a multimeter to test the thermal fuse for continuity.You may need to remove the dryer drum by loosening the dryer belt. If your lint screen is on the front, it will likely be found at the front of the dryer. If your lint screen is on the top of your dryer, the thermal fuse will likely be located at the back of the dryer. On older models, the dryer may continue to work but without producing heat. On newer models, if the dryer temperature exceeds a certain level, the thermal fuse is tripped, and the dryer stops working. The thermal fuse is a safety device designed to prevent your dryer from catching fire. One of the most common causes of a dryer not heating is the thermal fuse. Reassemble the dryer or move on to the next cause.If you need to detach any wires, taking photos can help you remember where they go. On some models, the top of the dryer and/or the control panel will need to be removed to find the screws to these panels. Depending on the model, remove the front or back panel, by unclipping and/or unscrewing it.Unscrewing and/or unclipping dryer panels to access the drum and motor will likely reveal more lint, and depending on the model, more lint traps and/or ventilation areas to clean. Reattach any panels you removed, or move on to the next cause, which may require access to this area.Reattach the hose to the dryer, making sure it is not scrunched up, so that air can flow through the hose.Purchase a ventilation cleaning kit or use a vacuum attachment to clean the area.Removing the panel surrounding the ventilation area may provide better access to this area. Take out the ventilation hose by removing the metal tape, unscrewing, or unclipping it from the dryer.If you have a gas dryer, turn off the gas. Disconnect the dryer from the power source.If you have a gas dryer, be careful when moving the dryer to gain access.
Disconnecting the dryer hose and cleaning out this area can solve the problem. If you can access the outside vent, you can test that the ventilation is working by checking for a warm, consistent airflow. Is a ventilation blockage responsible for your dryer not heating? Check the ventilation hose, and on some models, lint screens attached to the ventilation hose can also become blocked. If it fails the continuity test, replace the timer or the timer motor.Locate the small timer motor, and perform a continuity test.Unplug the dryer from the power source.To check and replace the timer, follow these steps: In other models, a faulty timer may stop heat from being released. If the timer is not moving to the next cycle, in some models, the heat may keep running until it becomes too hot, tripping the thermal fuse. If your dryer uses a mechanical timer, a faulty timer may be responsible for the dryer not heating. Once cleaned, reassemble the dryer, putting the lint screen back, or move onto the next cause.Make sure to disconnect the dryer from the power and turn off the gas (if applicable) before proceeding.For a more thorough clean, unscrewing and/or unclamping the panel surrounding the lint screen will provide better access.While the screen is drying, use a vacuum attachment to get into the slot the lint screen goes into.Take out the lint screen, and wash it in the sink with soap and warm water.But even with a lint screen, lint can still get through and cause a blockage, so make sure to clean out this area. The lint screen should be cleaned after every cycle. Check that the gas pipe is connected to the dryer.One of the easiest-to-check reasons that a gas dryer is not heating is a lack of gas. Check your electrical panel for tripped circuit breakers.A tripped heating circuit breaker would explain why the dryer is running but not heating. An electric dryer has two 120-volt breakers, one for heating and one for power. One common cause that is easy to check is a tripped circuit breaker. Follow this guide to diagnose and fix the problem. However, in some cases, there may be a more simple solution. The most common cause is a buildup of lint that has overheated the dryer and caused an internal part to stop working. There are a few different reasons why your dryer might not be heating.
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