Macbook Pro fan suddenly turned off?

Discussion in 'MacBook Pro' started by bobjohnson457, Oct 1, 2017.

  1. bobjohnson457 macrumors newbie

    Joined:
    Nov 10, 2016
    #1
    I have a 2012 13-inch MBP w/ OSX 10.12.6, 2.5 i5 and 4GB ram

    I was running some cpu intensive applications, so the fan was spinning very fast and loudly.

    Suddenly, my mac made a loud clicking noise (I could feel it in the laptop as my hands were on the keyboard, it felt/sounded like something broke), and the fan turned off completely. I then closed most of my applications to avoid overheating. After a while, the mac made the clicking noise again (this time quieter) and the fan turned on and started to run at max speed, then slowed down to normal.

    Now, everything seems to be fine. Any ideas about what happened?
     
  2. dear.leader macrumors newbie

    dear.leader

    Joined:
    Sep 28, 2017
    #2
    Sounds like some kind of debris might have got caught in the fan. With a 2012 MBP, it wouldn't be unusual for there to be quite a bit of dust, and potentially other misc debris caught in the dust at this point. The debris dislodged and clogged the fan. Either that or your fan is on the way out

    Best case scenario you just need to open up the bottom case, remove the fan, and vacuum. Worse case scenario you need to replace the CPU fan (part number 661-4946) which would cost ~$5.
     
  3. PBG4 Dude macrumors 68030

    PBG4 Dude

    Joined:
    Jul 6, 2007
    #3
    Don’t vacuum! Use canned air and blow the dust out! Vacuuming can create static discharge which kills RAM chips.
     
  4. jerryk macrumors 601

    Joined:
    Nov 3, 2011
    Location:
    SF Bay Area
    #4
    Remove the back and clean out the fans. Inspect the fans for damage and ducts for debris.
     
  5. dear.leader macrumors newbie

    dear.leader

    Joined:
    Sep 28, 2017
    #5
  6. PBG4 Dude macrumors 68030

    PBG4 Dude

    Joined:
    Jul 6, 2007
    #6
  7. dear.leader macrumors newbie

    dear.leader

    Joined:
    Sep 28, 2017
    #7
    Just a bit more economical.

    If you're ever gonna be in the position of working on hundreds or thousands of computers though, it's a dream to work with!
     
  8. Greene macrumors regular

    Greene

    Joined:
    Jul 15, 2015
    Location:
    Fort Worth
    #8
    Before you do this, lookup some more info on how to clean fans. Compressed air will work, but iirc, many manufactures recommend stabilizing the fan blades to keep them from spinning around while you're using the air. Sometimes the direction and speed the fan blades will spin can damage the motor.

    Pencil wouldn't be a bad stabilizer, but I would do a bit of research before attempting to clean them.
     
  9. PBG4 Dude macrumors 68030

    PBG4 Dude

    Joined:
    Jul 6, 2007
    #9

    I would hope they were brushless with electronic speed controls but I don’t think I’ve ever seen a fan tear down? Now I’m curious, gotta fire up the search engine. :)

    That’s was quick LOL. Stamped brushless on the module shown here

    https://www.ifixit.com/Store/Mac/Ma...y-and-MacBook-13-Inch-Unibody-Fan/IF163-022-1
     

Share This Page

8 October 1, 2017