Tech Supportal logo

Home Tech Problems Solved! Household Technology Support. Any Issue | Any Problem | Anytime

The Smart Home Starter team picks the products and services we write about. When you buy through our links, we may get a commission.

Why Is My Dell Laptop Fan Constantly Running?

Last Updated Jun 13, 2022

If you’re one of the many people with a Dell laptop whose fan seems to be constantly running, then you’re probably wondering what’s happening. Here’s a look at why this might be happening and what you can do about it.

Your Dell laptop’s fan might constantly be running because your laptop is overheating, there is dust blocking the fan’s blades, or the fan is simply not working properly. There may be other reasons you need to know to fix the problem.

Let’s look into the most common reasons why your Dell laptop fan is constantly running. We will then briefly explore what you can do to fix it.

My Dell Laptop Fan is Constantly Running: What’s the Deal?

Your laptop’s age has a lot to do with its fan performance. Dell laptops have built-in settings for fan speed, and your computer allows the fan to run and stop when needed. If it’s constantly running, it could be because of the following reasons:

  • Your hardware is overheating
  • The air vents are dusty
  • Its cooling fan is faulty
  • It could be due to a virus
  • Your laptop’s settings are incorrect
  • There’s dust and dirt build-up on the fan

There’s a solution for each of these causes, and you might need to take additional steps to fix the problem. Read on to learn how you can fix each one.

Different Reasons Why Dell Laptop Fan Constantly Runs

Dell laptops are known for their durability and performance. However, many Dell laptop users face a common problem: their laptop’s fan is constantly running. This can be extremely annoying and can make it difficult to get work done or enjoy your favorite shows and movies. Here are the explanations and fixes for your Dell laptop’s fan:

Your Hardware is Overheating

One of the most common reasons why a Dell laptop’s fan is constantly running is because the laptop is overheating. If your Dell laptop’s fan is constantly running because it’s overheating, then you’ll need to take some steps to fix the problem.

And if your computer is overheating, the problem is worse. The fan must work even harder to compensate for the heat, and it eventually just wears out and dies.

You can use a cooling pad or place your laptop in a cooler environment. It will help to take some of the heat away from your laptop. If your laptop is still overheating, you may need to take it to a technician to get it serviced.

You might also experience your fan going at high speed at startup, and if the startup is slow, there are other fixes.

The Air Vents are Dusty

Another common reason for a constantly running fan is dust buildup in your laptop. Dust can impede airflow and cause your laptop to overheat. Over time, the plastic fans start to degrade, and they don’t spin as smoothly as they used to. This causes the fan to run louder and work harder to try to keep your computer cool.

To clean your laptop, you can use compressed air to blow out the dust from the vents and fans. 

Its Cooling Fan is Faulty

If your laptop’s fan is constantly running, but your laptop isn’t overheating, there may be a problem with the fan itself. In this case, you’ll need to take your laptop to a technician to have the fan repaired or replaced.

Another way to combat the problem is to buy a CPU water cooler. These devices attach to your laptop and help to regulate its temperature. They are relatively inexpensive and can be a great investment if you frequently deal with an overheating laptop.

Make sure that the device is compatible with your Dell laptop. Take a look at the reviews to see what other users have said about the cooler. Consider your budget and ensure you are getting a good value for your money.

With a little research, you can find a CPU water cooler that will help to keep your Dell laptop cool and prevent it from overheating.

You Might Have a Virus

Another possibility is that your laptop has a virus. Viruses can cause your laptop to overheat and run slowly. If you suspect your laptop has a virus, you should run a virus scan with a program such as Norton as soon as possible.

Your Laptop’s Settings are Incorrect

Incorrect settings can also lead to a constantly running fan. To fix this, you’ll need to check your laptop’s power settings and ensure that it’s set to “Performance” or “High Performance.”

There’s Dust and Dirt Build-up

Dusty and clogged air vents can prevent the heat from escaping, causing your device to overheat. Your laptop keeps running the fans as it tries to cool it down. If you have a Dell laptop, you need to consider dust clean-up as a part of your regular maintenance, just like other appliances.

Take your time to properly clean out the vents and fan to make sure that there’s no dust and dirt build-up. And if all else fails, you can always take your laptop to a professional to get it fixed.

If you’re still having trouble with your Dell laptop’s fan, you can contact Dell customer support for assistance.


Either way, it could be a sign of an underlying issue that you should resolve as soon as possible to avoid any major hardware damage.