What can I do if my MacBook keeps making a loud fan noise when it’s on and is not doing any intensive tasks?

What am I supposed to do if my MacBook makes a loud fan noise and gets hot from the bottom even when I’m not doing any task?

MacBook Pro 13″, macOS 11.0

Posted on Nov 30, 2020 10:34 AM

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Question marked as Top-ranking reply

Posted on Dec 1, 2020 11:28 AM

Karen6300 wrote:

What am I supposed to do if my MacBook makes a loud fan noise and gets hot from the bottom even when I’m not doing any task?



Try resetting the SMC https://support.apple.com/en-us/HT201295




To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot as normal and test as caches get rebuilt.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.


if no resolve:


To get a good look at your System config. and reveal conflicts or issues, you can download/run this trusted utility https://etrecheck.com

If you need help interpreting the report you can post it here in its entirety in the "Additional Text" box in the editing toolbar below, in your reply.


1 reply
Question marked as Top-ranking reply

Dec 1, 2020 11:28 AM in response to Karen6300

Karen6300 wrote:

What am I supposed to do if my MacBook makes a loud fan noise and gets hot from the bottom even when I’m not doing any task?



Try resetting the SMC https://support.apple.com/en-us/HT201295




To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot as normal and test as caches get rebuilt.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.


if no resolve:


To get a good look at your System config. and reveal conflicts or issues, you can download/run this trusted utility https://etrecheck.com

If you need help interpreting the report you can post it here in its entirety in the "Additional Text" box in the editing toolbar below, in your reply.


This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

What can I do if my MacBook keeps making a loud fan noise when it’s on and is not doing any intensive tasks?

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