Most Macs, excluding the 2015 MacBook and 2020 MacBook Air, feature cooling fans. The smooth and efficient running of these fans is required to keep processors and other electronic components cool. However, you are not often aware of the fans not working issue until something goes worst. Maybe you hear the loud fan noise. Here is how to Fix MacBook Pro Fans Not Working.
How to identify if a MacBook is overheating?
Most of the time, it is hard to tell that the fans are running at an abnormal speed. The reason is that they hum along quietly in the background. When the MacBook overheats, you are hardly able to touch the area around the fan.
Check the CPU temperature regularly to ensure the workload is not putting too much pressure. If you find the fan sound suddenly increases when computationally intensive apps run, there is something wrong with it.
How to prevent MacBook fan failure?
Before you reach the Apple support team, try implementing the following things to Fix MacBook Pro Fans Not Working.
Check active browsers & apps
Your MacBook Pro fan will create a loud noise if multiple browsers and applications are running at the same time. It can also make your MacBook overheat excessively by constantly running a fan at a higher speed.
Loud noise will produce when the MacBook keeps overheating for a long time. It is recommended to quit unneeded processes to fix it. To check which app is consuming the most CPU, tap CPU in the Activity Monitor.
Monitor MacBook fan speed
Passively and regularly check the fan speed of your MacBook. Keep track of how fast it spins during specific tasks. To monitor MacBook fan speed, open Mac Fan Control and tap the Preferences button in the bottom-left corner.
In the Menu Bar Display, choose a fan and/or a sensor. Then, click the Close button. It will show the entire information in the menu bar at all times.
Ensure vents are not blocked
The MacBook’s fan is responsible for throwing the warm air out and taking the fresh air inside. Blockage of any of the vents can make your system keep getting hotter. Vents are usually blocked when users put them on soft surfaces such as cushions or beds.
Hence, no matter which MacBook model you are using, ensure the vents are not clogged up. Place your laptop on a flat and hard surface, such as a desk.
Stop power consuming processes
Click Utilities and then open Activity Monitor. Click the %CPU column to sort the process list by highest first. Select the activity that is using a higher amount of CPU time, choose it, and tap X. Click Quit.
Disable flash in your browser
By default, Flash is now disabled in the Firefox browser. However, in Chrome, you can use the Flash control function to disable the Flash instances. You can still see Flash on a per-site basis as required.
Disabling Flash is significantly important because it is one of the main causes of GPU and CPU overload. It will eventually increase the MacBook Pro fan speed as it is extremely intensive on the hardware.
Clean internal fan regularly
Accumulated dust and dirt can sometimes block the cooling vents. If you don’t clean it regularly, the dust goes inside the MacBook and clogs the fan. This sometimes leads to MacBook Pro fans problems and producing abnormal sounds.
So, open up your MacBook and clean the vents & fan properly. Remove the bottom panel with a small screwdriver. Or you can use a can of compressed air or a small piece of lint-free cloth for cleaning.
Control MacBook Pro fan speed
Another solution to fix the mac pro fan not working issue is to better control the MacBook Pro fan speed. By default, it is done using the firmware in a MacBook. It pre-regulates when the fan should take effect at high speed if the GPU or CPU is hot.
But, unfriendly interfaces make it difficult to control the speed manually. Hence, it is recommended to use third-party utilities. It will help you in controlling at what speed the fan should work.
The more you use a processor or other components of your MacBook, the hotter it will get. Whenever you notice that there is something wrong with your MacBook’s fan, identify the root of the problem.
However, it is not guaranteed that you will surely figure out why your mac pro fan not working. But, you can ensure its effective functioning by implementing the useful tips discussed above.
How do I reset my MacBook fan?
Use Shift-Control Option on the left sidebar of the keyboard to activate the power button. Hold the keys and power button for 10 seconds. Touch ID MacBook Pros have the Touch ID button as the power button.
How do I know if my MacBook Pro fan is broken?
Place your ear to the bottom of your MacBook Pro. Your fan should make a gentle, whirring sound. A fan that is rattling or grinding or revving is likely to be malfunctioning. You might also hear a ticking or screeching sound.