Q: I recently installed El Capitan. Now cooling fan is constantly on.
I checked activity log. Nothing is using CPU(more than the activity log anyway). I reset SMC several times, booted into safe mode etc.
The fan is immediate with the power button and continues even when starting into boot camp.
I rolled back to a pre El Capitan (Yosemite) install via time machine and the fan does the same thing. I can only guess that El Capitan changed my SMC or something in EFI or early level start sequence.
Posted on Nov 2, 2015 1:35 AM
Hi,
I'm writing to close this thread out and tell anyone interested what happened.
I took my Early 2013 Macbook pro into Apple for service. They ran lots of tests(while I was sitting there) and my computer didn't fail anything.
The fans were operating within the acceptable ranges. It still bothered me that I could still hear a noticeable fan noise on power up, so I asked them to send it in to service center to have them run more tests. Well, they replaced the logic board and gave it back to me. It still made the noise. A couple days later I brought it in again and the guy at the desk took it into the back to a "quiet room" . He came back and told me he totally knew what I was talking about. He also has a Macbook Pro of his own. They took it in and replaced both fans. It now is fixed and runs quietly like before.
Thanks all for the advice earlier.
Posted on Dec 22, 2015 8:26 AM
