
7 Causes (and How to Fix Them)
- Blocked Ventilation. An overheating dryer is often the result of blocked ventilation. ...
- Check the Heating Element. Another cause of a dryer overheating is a faulty heating element. ...
- Cycling Thermostat. The dryer’s cycling thermostat can also cause your dryer to overheat. ...
- High-Limit Thermostat. ...
- Cycling Thermostat Bias Heater. ...
- Thermistor. ...
- Blower Wheel. ...
Why is my Kenmore dryer overheating so fast?
Restricted Airflow. The single most common reason why clothes dryer overheat is restricted airflow. When there’s a blockage in the internal duct work, the hot air will become trapped inside the drum where it creates potential fire hazard. If you haven’t done so already, remove and clean the lint filter.
What happens when your clothes dryer gets too hot?
Clothes dryers are obviously designed to heat up so that you can dry your clothes faster, but what happens when they get too hot? There is more than one reason why this might be happening, from the heating element to the thermostat. One of the most common causes of an overheating dryer is poor airflow.
Is your tumble dryer overheating?
Tumble Dryer Overheating? Does your tumble dryer get too hot when in use? It could be down to a number of factors. If it shows an error code, consult your manual to check the reading of the fault.
Why does my dryer turn off by itself?
A cycling thermostat is a device’s way to protect itself from overheating. Once a dryer gets too hot, this component reacts to the increased temperature and shuts the appliance off automatically. However, if a cycling thermostat isn’t functioning, it may be why a clothing dryer is overheating and shuts off.

How do I fix my dryer from overheating?
1:023:05Top Reasons Electric Dryer Is Overheating — Dryer TroubleshootingYouTubeStart of suggested clipEnd of suggested clipYou should clean out the venting as well as the lint filter housing at least once a year to ensureMoreYou should clean out the venting as well as the lint filter housing at least once a year to ensure good airflow the blower wheel works with the motor to draw air into the dryer. Drum.
What would cause a dryer to get too hot?
One of the most common reasons for a dryer getting too hot is insufficient airflow. If air can't escape from the dryer, it becomes trapped in the drum, raising the temperature and potentially starting a fire. The first thing to check is the lint filter and make sure it's completely empty.
Is it normal for tumble dryer to get hot?
If you pull your clothes out of the dryer and notice that there are burn marks on them, your dryer is running far too hot. If your dryer is hot to the touch, that may be another sign of too much heat. Naturally, the dryer will be a little warm to the touch while it's running, but it shouldn't be significantly hot.
Will a dryer shut off if it gets too hot?
Once a dryer gets too hot, this component reacts to the increased temperature and shuts the appliance off automatically. However, if a cycling thermostat isn't functioning, it may be why a clothing dryer is overheating and shuts off.
How do you unclog a dryer vent?
How to Clean Out a Dryer Vent in 7 Simple StepsGather Your Cleaning Supplies. ... Pull the Dryer Out From the Wall, Unplug It, and Disconnect the Duct. ... Vacuum the Inside of the Vent. ... Connect the Flexible Rods in Your Dryer Duct Cleaning Kit to Your Power Drill. ... Turn On the Drill and Let the Brush Work Its Magic.More items...•
Why is my dryer hot but not drying?
If your clothes dryer feels really hot, but your clothes take forever to dry, the vent may be clogged. A clogged vent traps the excess hot air inside the dryer's drum, but the low circulation of air keeps clothes from getting dry. Make sure you're always cleaning off the lint screen before you run the dryer.
How do you cool down a tumble dryer?
To cool down a dryer that is getting hot you will need to check the cycling thermostat, high limit thermostat, thermistor, exhaust vent, and airflow. It's likely one of these areas is causing issues and you'll need to fix them to regulate your dryer again.
Can dryers catch on fire?
Dryer fire statistics and facts While it may be hard to believe, dryer fires are a fairly common cause of home fires. In fact, according to the National Fire Protection Association, dryers and washing machines cause an average of 15,970 fires each year, with dryers causing 92% of them.
Should condenser dryers get hot?
However, a condenser dryer does need a constant supply of cool air to function. When installing your appliance, make sure you place the dryer in a well-ventilated room, where warm air can easily escape. A condenser tumble dryer uses high temperatures to dry your clothes, reaching a maximum temperature of 70-75 °C.
How do you test a tumble dryer thermostat?
1:002:45Dryer Not Heating? High-Limit Thermostat Testing, Repair - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow use a probe to touch one of the thermostats terminals and the second probe to touch the otherMoreNow use a probe to touch one of the thermostats terminals and the second probe to touch the other terminal. If the meter reading shows zero ohms of resistance. The thermostat has continuity.
How long should a dryer last?
10-13 yearsA dryer should last 10-13 years. To extend the dryer's life, clean the lint trap after each use and make sure the outer vent is clear as well. New updated information for dryer maintenance as of July 8, 2022.
Where is the dryer thermostat located?
0:363:06How To Replace Tumble Dryer Thermostats - YouTubeYouTubeStart of suggested clipEnd of suggested clipTwo little screws that are holding the thermostats in place just to note that on this one one's gotMoreTwo little screws that are holding the thermostats in place just to note that on this one one's got a green spot.
How do you test a dryer thermostat?
1:002:53Dryer Not Drying? Cycling Thermostat Testing, Troubleshooting - YouTubeYouTubeStart of suggested clipEnd of suggested clipTest the part by touching the probes to the outer terminals. Only if the meter reading shows zeroMoreTest the part by touching the probes to the outer terminals. Only if the meter reading shows zero ohms of resistance. The thermostat has continuity.
How hot should the outside of my dryer get?
Most dryers get rid of moisture by venting it to the outside. The best dryers are capable of drying your clothes quickly at a temperature that is hot, but not so hot that it scorches or damages them. Temperatures under 150°F are gentle enough to get the clothes dry without causing harm.
Why does my dryer smell like its burning?
The burning smell from your dryer may be lint buildup or another common problem—such as a failing thermostat, motor, or belt. According to the U.S. Fire Administration, clothes dryers start 2,900 house fires per year.
Why does my dryer overheat?
When there’s a blockage in the internal duct work, the hot air will become trapped inside the drum where it creates potential fire hazard. If you haven’t done so already, remove and clean the lint filter.
What is a cycling thermostat?
Cycling Thermostat. Most dryers have a cycling thermostat that’s designed to automatically turn off the heating element at high temperatures. If this component is broken or malfunctioning, the clothes dryer may produce excessive heat.
Where is the cycling thermostat located?
The cycling thermostat is a small metallic device that’s usually found in the rear of the dryer , although you’ll need to remove the back panel to access it. You can test the cycling thermostat with a multi-meter to determine whether or not it needs replacing.
Where do you blow air out of a dryer vent?
With the dryer turned on, go to the outside of your house where the duct exhaust vents. Ideally, you should feel air blowing out of the vent. If there’s a blockage, however, you may feel little-to-no air.
What is a safety thermostat?
Sometimes called the safety thermostat this component is a valuable safety device that will protect your dryer from overheating if there are problems with the tumble dryer’s airflow. This tip goes great with my first one because it closely relates to the exhaust vent as well.
What to check if tumble dryer is too hot?
So, if your tumble dryer is too hot one of the first things you need to check is whether there is proper ventilation.
Why is my tumble dryer getting hot?
So, if your ventilation is clear but your tumble dryer is still getting too hot then you may have a problem with the high limit thermostat. This means you will need to call in a professional tumble dryer repair technician to check it and replace it for you if it’s damaged.
Can you use a cycling thermostat on a tumble dryer?
In more modern models of tumble dryer, you may not have a cycling thermostat at all.
Can a tumble dryer get too hot?
The heat levels of a tumble dryer can vary depending on the setting, but you’ll soon notice if it gets too hot. There’s a big difference between a tumble dryer’s maximum heat setting and a tumble dryer that is generating to much heat. There could be a lot of different things that are causing your tumble dryer to generate to much heat it could ...
What is a cycling thermostat bias heater?
What is it: the cycling thermostat bias heater is what allows the clothes dryer to be switched to multiple temperature settings using only one cycling thermostat. It’s important to note that not all units have a bias heater.
What happens if your thermostat is not continuity?
Always be sure to heat slowly. If the multimeter reads that there isn’t continuity, your high-limit thermostat is functioning properly and you can troubleshoot the next source. If continuity breaks at a higher temperature, or there isn’t any at all, you’ll know that the unit is faulty and needs to be replaced.
What happens if a multimeter is not reading continuity?
If the multimeter reads that there isn’t continuity, your cycling thermostat is functioning properly and you can troubleshoot the next source. If continuity breaks at a higher temperature, or there isn’t any at all, you’ll know that the unit is faulty and needs to be replaced.
How to check if a thermostat is high?
To check this, use a heat gun on the thermostat while holding a thermometer against the high-limit thermostat. If your high-limit thermostat is rated for 250 °F, for example, heat it past that point and check again for continuity. Always be sure to heat slowly.
What is a thermistor in a dryer?
What is it: The thermistor is a sensor that lets the dryer know what the internal temperature is inside the drum. They are designed to decrease resistance as the temperature increases. Thermistor On The Right Side !!! Why it fails: Improper ohm signal is being sent to the control board, resulting in overheating.
What is the blower wheel on a dryer?
What is it: Finally, the blower wheel is what circulates the warm air within the dryer and back out of the exhaust. Why it fails: This can get clogged with lint and buildup, resulting in the dryer getting too hot. How to fix: Located within the blower housing, you will need to remove the panel and check for buildup.
What is a failed cycling thermostat?
Failed Cycling Thermostat. What is it: This thermostat is responsible for regulating the heat inside the clothes dryer. It does this by cycling the heat on and off. These parts are typically rated between 135 °F to 165 °F. Why it fails: The contacts can fuse together, causing the dryer to get too hot.
How do you stop a dryer from overheating?
As you know, it is very common for a dryer to overheat due to a variety of reasons. What you may not know, however, is how do you stop a dryer from overheating?
Will a dryer shut off if it gets too hot?
What happens if a dryer shuts off while it’s too hot? What are the possible causes? Can you figure out how to stop this from happening?
How do you know if your dryer is overheating?
What do you do when you can’t seem to figure out how do you know if your dryer is overheating? It happens to most of us and it happens all the time. It’s not easy to tell if your dryer is overheating, because many of them don’t have a method of measuring their temperature, so the only way to be sure is to keep track of your dryer.
Can tumble dryers overheat?
Do you ever wonder about the different myths that surround the question of whether or not tumble dryers can overheat?
Why does my dryer keep shutting off when it gets too hot?
A cycling thermostat is a device’s way to protect itself from overheating. Once a dryer gets too hot, this component reacts to the increased temperature and shuts the appliance off automatically. However, if a cycling thermostat isn’t functioning, it may be why a clothing dryer is overheating and shuts off.
Why does my dryer shut off on its own?
Reason #1. Dust and dirt getting into the air hole. If the air filter inside the dryer is dusty or dirty, it’s harder for the appliance to heat the air. As a result, the device uses more energy to create enough heat. After a short while of use, a dryer with a clogged filter will start overheating and shut off on its own.
Why does my dryer overheat?
Make sure the dryer cord doesn’t knot. One reason dryers overheat is that the cord that connects the appliance to the outlet has become knotted. Take some time to untie the knots until the cord makes a perfectly straight line. Plug the dryer back in and evaluate its performance.
What is a lint screen?
Lint screens are one of the dryer components ensuring the safety of usage. For one, they capture lint, grease, and dust, ensuring nothing gets stuck inside the heating coil. Once a screen has stopped letting air through, an appliance can overheat.
How often should I clean my dryer drum?
Clean the drum of the dryer thoroughly. Depending on the frequency of use, you should clean your appliance every couple of uses. Otherwise, you will see the dryer overheating and shutting off. Make sure the device is unplugged before you start cleaning.
How long should I keep my dryer on?
Try not to use the dryer for more than 40-50 minutes at one time. Although the overall lifespan of some models can go up to 1,500, don’t let the number trick you. It’s easy to overheat the coil and damage the inner circuits of the system if you keep the dryer on for an extended period of time.
Why replace an air duct in a dryer?
Since using an old air duct increases the risk of fire hazards, replace it to prolong the device’s lifespan and stay safe. Reason #3. Heating element issues.
