There’s nothing more frustrating than getting your clothes ready for the day and turning on your dryer only to find that it won’t heat up. It’s especially maddening when you’ve already waited through an entire cycle and are left with damp or wet clothes. Luckily, there are many things that could be causing your dryer not to heat up and most of them are fairly simple to fix. If you’re using an electric dryer and your clothes aren’t heating up, the first thing to check is whether your breaker or outlet has been tripped. If you switch the breaker back on and the dryer still won’t heat up, you may have a faulty thermocouple or heating element that needs to be replaced. In gas dryers, the problem may be with the flame sensor or the thermal fuse. Both of these parts maintain a consistent temperature inside the dryer and when they go bad, the machine won’t heat. Fortunately, replacing either one of these parts is easy and can be done at home. Another common cause for a dryer not heating is a clogged exhaust vent. The flexible metal hose that connects your dryer to your house vent must be free of lint and blockage for the dryer to properly release hot air. You can test for this by starting a timed dry on high heat and then going outside to the vent and feeling for warm air flowing out. If the vent is clogged, you can clean it yourself or call in a professional appliance service technician to do so. dryer not heating up