Vent. For the hot air to escape, it has to have a place to go. In the case of the MacBook, the main vents are located near the hinge of the monitor and keyboard. The hot air is pushed out of these vents near the monitor, which is one reason that the area near the hinge often feels warm.
Note that the right fan is on the right of the machine while you're using it, and on the left while you're working on it.
There are a couple of air vents on the side and bottom of the MacBook, which helps the fans in sucking cold air into your device and releasing hot air out of your MacBook.
A MacBook Pro fan should always be on. However, it should not be excessively noisy or running at a high speed all the time. If it is running at maximum RPM (usually about 6000 on a MacBook Pro), this indicates there is software running on your Mac that is stressing the CPU or GPU.
They usually hum along quietly in the background. But do something more demanding like video editing, and they may start to spin faster, making more noise in the process. Sometimes, though, they're excessively noisy or they might kick in when you're not doing anything with your Mac.
Apart from a few exceptions, like the 2020 MacBook Air and the 2015 MacBook, all Macs have cooling fans. Processors and other electronic parts all generate heat when they're used. And the more you use them, the hotter they get. Most of the time, you won't even notice the fans running.
MacBook, MacBook Pro, and MacBook Air
There are currently two models in the MacBook series: the MacBook Pro and the MacBook Air. The regular MacBook has been removed from availability. These laptops are powerful, but in exchange, generate a lot of heat. To keep them cool, each laptop has at least one fan and a casing design to assure proper airflow.
Answer: A: The software is ready to report on up to two fans, but that model only has one fan inside. 15 and 16 inch MacBook Pro models have two fans.
As you can see from the graphs below, which measure the speed (rpm) of the left-hand fan in both laptops, it wasn't uncommon for the fans on the 2019 MacBook Pro (left graph) to be whirring at 4,000 rpm or beyond. Compare that to the fans on the new MacBook Pro, which barely come on at all.
Laptop Description The MacBook Pro Retina generation includes two cool air intake vents located on each side.
The first thing you should do is launch Apple Diagnostics, one of the hidden startup options on your Mac. Turn your computer off, then hold the “D” key while turning it on. Your Mac will test your hardware, and let you know if your fan is broken.
Put one of your finger in the middle of the fan so it can't turn anymore. Take your brush and gently try to loosen up the dust particles with the bristles of the brush. This might take a while but you'll see that there's quite a lot of dust hidden in that fan. Gently blow the dust away once it's out of the fan.
Why is MacBook fan always on? The MacBook fan always on issue usually doesn't indicate anything serious and in most cases can be fixed without too much hassle. Possible causes of a MacBook fan being always on can be dust build-up, heavy GPU use, regular wear and tear, and more.
Think your fan might be broken? The first thing you should do is launch Apple Diagnostics, one of the hidden startup options on your Mac. Turn your computer off, then hold the “D” key while turning it on. Your Mac will test your hardware, and let you know if your fan is broken.