How to Check If Laptop Fan is Functioning Properly Or Not?

Is your laptop experiencing performance issues or overheating? The culprit might be a malfunctioning fan. The laptop fan plays a vital role in cooling down the internal components and ensuring optimal performance.

In this comprehensive guide, we will provide you with quick solutions to determine if your laptop fan is working correctly and keep your laptop cool. By identifying signs of a faulty fan and implementing the suggested solutions, you can address the problem effectively and avoid potential damage to your laptop.

Why is the Laptop Fan Important?

Before delving into the methods of checking your laptop fan’s functionality, let’s first understand why it is crucial. The laptop fan is responsible for dissipating heat generated by the processor and other internal components.

As you perform tasks on your laptop, such as running applications or playing graphics-intensive games, the processor tends to heat up. If the fan fails to cool it down effectively, the laptop’s performance may suffer, and in extreme cases, it can lead to hardware damage.

Laptop Fan Functioning Properly Or Not

Signs that Your Laptop Fan Might Not Be Working

To determine whether your laptop fan is functioning correctly, keep an eye out for the following signs:

1. Increased Operating Temperature

If you notice that your laptop is running hotter than usual, it could be an indication of a faulty fan. When the fan is not working correctly, the laptop’s internal temperature rises, leading to an overall increase in operating temperature.

In such cases, you might experience unexpected system shutdowns or reduced performance.

2. Unusual Fan Noises

Laptop fans are generally designed to operate silently. However, if you start hearing strange noises like grinding, buzzing, or rattling sounds emanating from your laptop, it could indicate a problem with the fan.

These noises might be a result of accumulated dust or debris obstructing the fan blades or a malfunctioning motor.

3. Intermittent Fan Operation

Another telltale sign of a faulty laptop fan is irregular or sporadic operation. If the fan turns on and off at irregular intervals or doesn’t start at all, it’s an indication that something might be wrong. This behavior can result from a loose connection, a damaged fan motor, or a malfunctioning temperature sensor.

Read: What you should not do when your computer stopped working?

How to Check If Your Laptop Fan is Working

Now that we have identified the signs that might indicate a malfunctioning fan, let’s move on to the methods you can use to check its functionality:

1. Physical Inspection

The first step in determining whether your laptop fan is working is to visually inspect it. Power off your laptop and remove the battery. Locate the fan vent on your laptop, which is usually present on the sides or rear.

Using a flashlight, examine the vent for any visible obstructions like dust or debris. If you notice significant accumulation, it’s essential to clean it carefully using compressed air or a soft brush.

2. Software Monitoring

Several software applications can help you monitor your laptop’s fan speed and temperature. These programs provide real-time information about the fan’s RPM (revolutions per minute) and temperature readings.

Popular software options include SpeedFan, HWMonitor, and Open Hardware Monitor.

Install one of these programs, launch it, and observe the fan speed and temperature readings. If the fan speed remains constant at zero or doesn’t change despite increased system load, there might be an issue with the fan.

3. BIOS Check

Most laptops have a built-in system BIOS that allows you to check the hardware components, including the fan. To access the BIOS, restart your laptop and press the designated key during the boot process (typically displayed on the screen).

Once in the BIOS, navigate to the hardware monitoring section, where you can find information about the fan’s RPM. If the RPM reading appears as zero or remains unchanged, it indicates a potential problem with the fan.

Taking Action for a Malfunctioning Fan

If you have determined that your laptop fan is not working correctly, it is essential to take prompt action to prevent further damage. Here are a few steps you can take:

  • Professional Assistance: If you are unsure about handling laptop hardware or lack the necessary expertise, it is advisable to seek professional assistance. Experienced technicians can diagnose the problem accurately and replace the faulty fan if needed.
  • Cleaning: In some cases, a malfunctioning fan might be a result of accumulated dust and debris. As mentioned earlier, carefully clean the fan vent using compressed air or a soft brush to remove any obstructions. This simple maintenance step can often resolve minor issues.
  • Fan Replacement: If the fan is irreparably damaged or no longer operational, you may need to replace it. Contact the laptop manufacturer or an authorized service center to obtain a compatible fan and follow their instructions for replacement.


Can I still use my laptop if the fan is not working?

Using a laptop without a functioning fan is not recommended. Continuous use without a working fan can lead to increased operating temperatures, reduced performance, and potential damage to the hardware.

Can I clean my laptop fan myself?

Cleaning your laptop fan yourself is possible and recommended. With the proper tools and a gentle approach, you can remove dust and debris from the fan and cooling vents, helping to improve airflow and prevent overheating.

Can dust damage laptop fan?

Yes, dust can damage a laptop fan. When dust accumulates on the fan blades and inside the cooling system, it restricts airflow, leading to overheating. Over time, this can cause the fan to work harder, wear out faster, and potentially lead to system failures. Regular cleaning can help prevent damage and maintain optimal performance.


Ensuring the proper functionality of your laptop fan is crucial to maintain optimal performance and prevent potential hardware issues. By familiarizing yourself with the signs of a malfunctioning fan and employing the methods outlined in this article to check its operation, you can address any problems proactively. Remember, if you are uncertain or uncomfortable with any hardware-related tasks, seek professional assistance to avoid further complications.