Battery and Fan issues (SMC?)

Discussion in 'Mac Basics and Help' started by NoFanNoFun, Oct 30, 2018.

  1. NoFanNoFun, Oct 30, 2018
    Last edited: Oct 30, 2018

    NoFanNoFun macrumors newbie


    Oct 30, 2018
    Hello MacRumors,

    About two weeks ago my battery died suddenly. After this, my battery icon alternated between an X and 100% charge with a replace soon indicator. Computer died whenever not plugged in. I ordered a replacement from and upon replacement everything seemed to be great (old battery also had two blown cells so figured it must be the end of the story).

    However, about 5 days into portable bliss my computer shut down suddenly again and upon start up the X icon reappeared. I contacted MacSales and they are sending another replacement BUT I also downloaded a fan indicator and discovered my fan was running at 0 rpm regardless of CPU usage. Is this just a dud battery I got or something more. Running hardware diagnostics I get error PPT001 only (no SMC error) and the fan works fine during hardware check or by manually turning it on using 3rd party software.

    I have reset SMC and PRAM countless times to no avail. Also no visible damage was seen when I opened to replace battery (although I may not recognize it). Any ideas would be greatly, greatly appreciated.

    13" Early 2015 MacBook Pro OS 10.11.6
  2. hobowankenobi macrumors 6502a

    Aug 27, 2015
    on the land line mr. smith.
    Not sure about the fix here....but a work around might be use Macs Fan Control to easily see, modify, and monitor fans and temps.

    Been using it for years on lots of machines, no issues.
  3. chscag macrumors 68030


    Feb 17, 2008
    Fort Worth, Texas
    Sounds like a bad thermal sensor. Just do what the previous reply suggested and use Macs Fan Control and you'll be al right.
  4. NoFanNoFun thread starter macrumors newbie


    Oct 30, 2018
    Thanks for the replies! I was being a bit of an idiot though and assumed that my fan should be running at a baseline RPM at all times. Turns out it works just fine but was just running at 0 RPM as it seems many later macbook pros do.

    However, the battery problem is a bit more complicated. The black X spontaneously vanished while working with laptop plugged in. Worked perfectly for about a week or so and then randomly, while unplugged, computer shut down and upon restart black x was back. Any ideas?


Share This Page

3 October 30, 2018