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  1. #16
    Quote Originally Posted by chscag View Post
    I understand your frustration. I was in the repair business for many years before retiring and intermittent problems are always the hardest to pin down. One more thing I would recommend.. run the extended Apple Hardware Test to see if it spots anything. Sorry that we can't be more specific in trying to pinpoint the problem.
    Thanks, I'll give that a shot and report back. Are there any logs I can look at? I'm not too familiar with Console or where to look in there specifically. Having checked CPU temps and Activity Monitor, I'm not sure where else to take a peek.

  2. #17
    Quote Originally Posted by badAdjective View Post
    Thanks, I'll give that a shot and report back. Are there any logs I can look at? I'm not too familiar with Console or where to look in there specifically. Having checked CPU temps and Activity Monitor, I'm not sure where else to take a peek.
    No luck with hardware test, everything checked out.

  3. #18
    MacBook Air Loud Fan Under Zero Load
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    56,761
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, Mojave
    How to retrieve console logs for macOS. Good luck and keep us posted if you find anything that resolves the problem.

  4. #19
    MacBook Air Loud Fan Under Zero Load
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    5,332
    Your Mac's Specs
    L2014 Mac mini macOS Mojave, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Have you tried Safe mode, https://support.apple.com/en-us/HT201262?
    Have you tried OnyX, https://www.titanium-software.fr/en/index.html? Just be sure to get the correct OnyX version, to match your macOS version. Run the "Maintenance" default tasks.

    I have also noticed previously, that sometimes multiple SMC resets were required to fix some issues. At least, on my 15" Late 2011 MBP they were needed.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  5. #20
    Quote Originally Posted by ferrarr View Post
    Have you tried Safe mode, https://support.apple.com/en-us/HT201262?
    Have you tried OnyX, https://www.titanium-software.fr/en/index.html? Just be sure to get the correct OnyX version, to match your macOS version. Run the "Maintenance" default tasks.

    I have also noticed previously, that sometimes multiple SMC resets were required to fix some issues. At least, on my 15" Late 2011 MBP they were needed.
    I haven't tried safe mode yet, only because the problem is so intermittent that it could be 2-3 days before the fan randomly starts going crazy again. I could try here and there to see if it comes up. I'll look into Onyx as well. So far I've tried 2 or 3 SMC resets but you could be right, I guess it can't hurt to try a couple more.

  6. #21
    Quote Originally Posted by ferrarr View Post
    Have you tried Safe mode, https://support.apple.com/en-us/HT201262?
    Have you tried OnyX, https://www.titanium-software.fr/en/index.html? Just be sure to get the correct OnyX version, to match your macOS version. Run the "Maintenance" default tasks.

    I have also noticed previously, that sometimes multiple SMC resets were required to fix some issues. At least, on my 15" Late 2011 MBP they were needed.
    So I ran Onyx like you recommended and waited 2 weeks to see if anything changed, and wadyaknow! No fan issues since, so I'm going to assume the issue is fixed, thanks!

  7. #22
    MacBook Air Loud Fan Under Zero Load
    IWT's Avatar
    Member Since
    Jan 23, 2009
    Location
    Born in Scotland, Worked in Scotland then England, Now live in Wales
    Posts
    4,816
    Your Mac's Specs
    Late 2015 5K 27-inch Retina iMac, 4GHz i7, 32GB RAM, 1TB Flash Drive, macOS High Sierra 10.13.6
    +111 for OnyX.

    Ian
    Ian

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