MBA 2013 - Constant fan and Slow at Recovery console!

[nc11]

So my daughter’s MacBook Air started slowing down with cpu at more then 100% constantly. Tried to troubleshoot the kernel_task cpu problem, reset both PRAM and SMC, deleted the mediaanalysis.pilst, etc to no avail.

Formatted the HDD and thought I’ll just re-install a clean OS to resolve, however it’s still happening at the recovery console!

Any ideas what to do next?

Cheers folks!

-NC11

 

[Audit13]

Checked for blocked vents? Possibly dried out heatsink compound? Exposure to moisture? Trackpad works okay?

 

[nc11]

Trackpad works well. No visible blocked vents... shall I open the back and check?

 

[Audit13]

It may be worth taking the machine to a place that can perform board level repairs and have them check the sensors and circuits on the board.

My mid-2013 MBA I had got liquid inside and the board had to be cleaned and some capacitors replaced to stop the constant high fan speed.

I bought an early 2015 MBA for parts and I discovered that almost everything worked except the fan would spin at full speed after being on for about a minute and would not slow down. I took this machine to the same shop that worked on the mid 2013 and he replaced some chip on the board. I picked it up yesterday and it runs perfectly.