You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

eeking33 Author

Level 1

11 points

iMac fan runs continiously

What is causing my iMac fan to run constantly

iMac 27″, macOS 12.0

Posted on Jan 7, 2022 12:59 PM

Top-ranking reply

den.thed

Level 10

82,444 points

Posted on Jan 7, 2022 3:05 PM

By default the Fan(s) "depending on the model" always run when the iMac is on.

If the Fan(s) are running full blast, then try resetting the SMC.

https://support.apple.com/en-us/HT201295

If the SMC reset does not help and the iMac has been repaired or you have done some type of DIY hardware upgrade? Then there is a pretty good chance that a temperature sensor is either disconnected or has been damaged.

View in context

iMac fan runs continiously

Similar questions