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MacBook Air fan

Hi, I have a MacBook Air 2017.

i haven’t had it for very long (only from December) and the fan has got pretty loud recently, I’ve had a look at the things on Apple and no vents are being blocked and the system isn’t trying to carry out anything extensive, the fan speeds up as soon as I turn on my Mac. What should I do?

MacBook Air 13", macOS 10.14

Posted on May 9, 2020 1:39 AM

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Question marked as Top-ranking reply

Posted on May 9, 2020 2:03 AM

Try this:

How to reset the SMC of your Mac - Apple Support


The SMC is responsible for managing behaviors related to the following features. If you're experiencing issues with any of these, you might need to reset the SMC. 

  • Power, including the power button and power to the USB ports
  • Battery and charging
  • Fans and other thermal-management features
  • Indicators or sensors such as status indicator lights (sleep status, battery charging status, and others), the sudden motion sensor, the ambient light sensor, and keyboard backlighting
  • Behavior when opening and closing the lid of a notebook computer



Good luck!

Similar questions

6 replies
Question marked as Top-ranking reply

May 9, 2020 2:03 AM in response to Amber3_21

Try this:

How to reset the SMC of your Mac - Apple Support


The SMC is responsible for managing behaviors related to the following features. If you're experiencing issues with any of these, you might need to reset the SMC. 

  • Power, including the power button and power to the USB ports
  • Battery and charging
  • Fans and other thermal-management features
  • Indicators or sensors such as status indicator lights (sleep status, battery charging status, and others), the sudden motion sensor, the ambient light sensor, and keyboard backlighting
  • Behavior when opening and closing the lid of a notebook computer



Good luck!

May 9, 2020 12:49 PM in response to Amber3_21

I just realiced you said you had a macbook air 2017 model.


If so follow the steps under:


Notebook computers with a non-removable battery

This applies to all MacBook Air models, as well as MacBook and MacBook Pro models introduced in mid 2009 or later, excluding the MacBook (13-inch, Mid 2009).

  1. Shut down your Mac.
  2. On your built-in keyboard, press and hold all of these keys:
    • Shift  on the left side of your keyboard
    • Control  on the left side of your keyboard
    • Option (Alt)  on the left side of your keyboard
  1. While holding all three keys, press and hold the power button as well.


2 Keep holding all four keys for 10 seconds.

3 Release all keys, then press the power button to turn on your Mac.


MacBook Air fan

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