If your dryer has stopped heating, this guide is for you! We will discuss all the major causes of this problem and let you know the solutions to fix them. The most common cause is that the lint trap or vent is full of lint, so it’s usually pretty simple to get your dryer working again. However, if that doesn’t work, you will need to check internal components with a multimeter. If you don’t have a multimeter, you will need to call a technician to come and inspect your dryer.
The best place to start is to check the lint trap and ventilation system to ensure they aren’t full of lint. When this happens, your dryer won’t be able to heat properly.
Here is how to check the lint trap and vent:
The next cause to investigate is if the thermal fuse has become faulty. The thermal fuse turns your dryer off when it overheats. So if it becomes faulty, your dryer might be unable to heat.
Here is how to fix a faulty thermal fuse:
The following two causes are for gas-powered dryers only. If you have an electric dryer, move down to cause 5. Gas-powered dryers have igniters to light the gas. If the igniter is faulty, your dryer won’t be able to heat.
Here is how to fix the gas valve solenoid and igniter:
Your dryer also has a flame sensor that monitors the temperature in your dryer. When the sensor becomes faulty, your dryer won’t heat properly.
Here is how to fix a faulty flame sensor:
This cause is for electric dryers only. If you have a gas dryer, move on to step 6. Electric dryers have an element that provides heat during a drying cycle. When faulty, your dryer won’t be able to heat.
Here is how to fix a faulty heating element:
The high-limit thermostat is in your dryer to monitor the temperature so that it can tell the control board to switch your dryer off when it overheats. If the thermostat becomes faulty, your dryer won’t heat.
Here is how to fix a faulty high-limit thermostat:
A faulty timer is the next possible cause of your dryer not heating. The timer makes sure your dryer works properly during a drying cycle. If it becomes faulty, your dryer might not heat properly.
Here is how to fix a faulty timer:
The final potential cause is a faulty main control board. The main control board is responsible for telling the other components in your dryer when to turn on and off. If it becomes faulty, your dryer won’t be able to heat. Unfortunately, the main control board is difficult to repair so you need to replace it. It’s worth considering calling a technician so they can inspect your dryer, as replacing the main control board isn’t guaranteed to get your dryer heating again.
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