Massive fan issue - tried everything - grateful for any advice/help

[MatthewJM]

Hi,

I own a 2011 MBA and since quite a while the fan goes completely crazy.
I have tried everything and will buy a new notebook because of this issue.

Before I do this though, I thought ask whether anyone of you has any last idea / advice?

Browsing in a couple of tabs at the moment (including images and/or 480p-720p videos), nothing else open and those are the stats: 150°F / 65°C / 6000 rpm. Normal room temperature. Sounds like a jet is taking off.

Image editing in Photoshop or similar tasks will do the same.

Other times, the fan is at 2500 rpm (more or less silent) and 180°F / 82°C. Just don't get it.

Tried different browsers, deactivating flash, resetting smc / pram, SMC Fan control, iStat Menus.
Also opened the MBA: fan looks clean.
Running macOS Sierra 10.12.3.

Oh, and the activity monitor shows a CPU which is not busy at all.
There are no tasks which would cause the fans to go up like that.

Thanks so much for any advice!

 

[Audit13]

Could be faulty sensors in the machine, dried out heatsink compound, moisture exposure. Trackpad works fine?

 

[MatthewJM]

Thanks for your reply, yes trackpad works fine! Actually everything works fine, also speed/hardware wise.

 

[Audit13]

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

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.

 

[MatthewJM]

Thank you Audit! Hadn't thought about this and will investigate it.