The Macbook Air uses vents to keep the machine cool. For some users, the loud fans may be a surprise. These are a benefit because they help to keep the machine cool and protect it from overheating.
Where are the air vents on a Macbook Air?
The Air vents on a MacBook Air are placed on the bottom, in the center of the hinge. They are designed to allow hot air to flow upwards.
Fans and fan noise on Macbook Air
Air vents and fan noise on your Macbook Air are normal. The aluminum body casing helps to dissipate heat, but the computer still needs to ventilate hot air. If you notice that the fan is noisy or running constantly, it’s probably because the computer is working hard and generating a lot of heat.
Open Activity Monitor (in the Utilities folder in Launchpad) to see which apps are using up the most processing power. If you don’t see anything out of the ordinary, then the fan noise is just part of normal operation. To reduce fan noise, you can try closing any unused apps and windows, and turning down the brightness of the display. If the computer is still too hot or the fan is still too noisy, contact Apple support.
The MacBook Air vents are located on the top center of the laptop in between the hinges. It’s designed to allow the heat to flow upwards, allowing it to maintain optimal temperature.
Macbook Blowing Out Air
The MacBook Air is designed to ventilate hot air out of the back of the computer. If you notice that the fan is constantly running or blowing out a lot of air, it’s probably because the computer is working hard and generating a lot of heat.
MacBook Air Cooling System
The MacBook Air uses a combination of aluminum casing and air vents to dissipate heat. The aluminum body helps to conduct heat away from the internal components, while the air vents allow hot air to escape.
Fan on Macbook Air Won’t Stop
If the fan on your MacBook Air won’t stop, it’s probably because the computer is working hard and generating a lot of heat.
Are the Fans on the Macbook Air Automatic?
The fans on the MacBook Air are automatically controlled by the computer. The computer will turn on the fans when it starts to get hot, and turn them off when it cools down.
What Temperatures Trigger the MacBook Air Fans?
The MacBook Air fans will turn on when the internal temperature of the computer gets too high. Apple does not disclose what the specific trigger temperature is, but it is generally around 85 degrees Fahrenheit.
How to Prevent Overheating on Macbook Air
There are a few things you can do to help prevent your MacBook Air from overheating:
-Make sure that all the vents are clear and unobstructed.
Blocked vents can cause the computer to overheat because it can’t dissipate heat properly.
-Don’t use your MacBook Air on a soft surface, like a bed or couch.
Using the computer on a soft surface can block the vents and cause the computer to overheat.
-Keep the computer in a cool, well-ventilated area.
In hot weather or in a room that doesn’t have good airflow, the computer can overheat.
-Avoid using intensive apps or running multiple apps at the same time.
Using resource-intensive apps or running multiple apps at the same time can make the computer work harder and generate more heat.
-If you’re using an external display, make sure that it’s properly ventilated.
Some displays can block the vents on the back of the MacBook Air, causing the computer to overheat.
-Don’t use the computer in a hot environment.
Hot environments can cause the computer to overheat.
-Turn down the display brightness.
A bright display generates a lot of heat. Turning down the brightness will help to reduce heat generation.
-Take breaks and give the computer a chance to cool down periodically.
If you’ve been using the computer for a long time, it can get hot. Taking a break will give the computer a chance to cool down.
-Invest in a laptop cooling pad.
A cooling pad can help to dissipate heat and keep the computer cool.
How to Check for Unexpected Fan Use
There are a few steps to use that you can run on your computer and see why unexpected fan use occurs.
On a Mac based on Intel, the System Management Controller can be reset
If the Mac computer has Apple silicon, you should close and open the Macbook lid. Alternatively, restart the computer.
1. Open “Activity Monitor” in your “Applications” folder. This monitors all activity on your computer, including fan use.
2. Click the “% CPU” column header to sort the processes by how much of your computer’s processing power they are using. If a process is using a lot of processing power, it may be causing your fan to turn on.
3. Select the process that is using a lot of processing power and click “Quit Process.” This will force the process to stop running. If the fan turns off after you quit the process, you have found the cause of your problem. If the fan does not turn off, continue to the next step.
4. Open “System Preferences” and click “Energy Saver.”
5. Uncheck the box next to “Automatic Graphics Switching.” This will force your computer to use the more powerful graphics processor all the time, even when it is not necessary. This may cause your fan to turn on more often, but it will also improve your computer’s performance.
You can also try using smcFanControl to set a constant fan speed.