Help, fans running as soon as I turn on my macbook air (2017) without stopping

[jordysak]

Today, as I started the macbook I was hearing a strange continuous noise and I could not understand the reason (I managed to record it, please listen to the audio in the video attached).

I decided to reset SMC and nothing changed, in fact now as soon as I turn on the macbook the fans kick in non-stop ..what can I do?

EDIT: fans now run at a very high speed when the MacBook is on (way louder than the video)

 

[Ruggy]

It's possible it's full of dust. It does happen and when it does it starts to overheat and then the fans work all the time.
Maybe not, impossible to say really.

 

[Audit13]

Was the MacBook dropped or exposed to moisture?

This post may help: https://forums.macrumors.com/threads/mba-1466-sensor-issue.2286726/

 

[Adenitz]

If your macbook can start to desktop, please install HWMonitor and place your temperature readings, just like in my case described in the thread that Audit 13 placed in the previous post.

One more thing. Try to start Facetime and see if it can start without problems.

 

[jordysak]

If your macbook can start to desktop, please install HWMonitor and place your temperature readings, just like in my case described in the thread that Audit 13 placed in the previous post.

One more thing. Try to start Facetime and see if it can start without problems.

FaceTime works fine; I have a different app called ‘macs fan control’ and it reads the temperature at 31’-31’C ..

also FaceTime opens as usual

 

[jordysak]

Was the MacBook dropped or exposed to moisture?

This post may help: https://forums.macrumors.com/threads/mba-1466-sensor-issue.2286726/

Nope, at least no more moisture than I have in my room usually
So nothing different

 

[jordysak]

It's possible it's full of dust. It does happen and when it does it starts to overheat and then the fans work all the time.
Maybe not, impossible to say really.

The temperature readings say the temperature is between 31-32’ C.. is that too much?

 

[Audit13]

Nope, at least no more moisture than I have in my room usually
So nothing different

Was it ever exposed to liquids? Liquid exposure often results in the fan spinning at full speed at all times.

 

[Adenitz]

Jordysack, Macs Fan control is not enought, for example on my computer it reads only some sensors like shown in pic 1. But HW Monitor gives a more complete information like shown in pic2. And in my case, this was caused by liquid damage. It didn't start immediately, but after a few weeks.

 

[jordysak]

Was it ever exposed to liquids? Liquid exposure often results in the fan spinning at full speed at all times.

nope I am normally careful with liquids, especially after I spilled some drops of water many months ago but it was a long time ago and I took all the necessary precautions to avoid damage ..not sure if something that happened that long ago would affect anything?

 

[jordysak]

Jordysack, Macs Fan control is not enought, for example on my computer it reads only some sensors like shown in pic 1. But HW Monitor gives a more complete information like shown in pic2. And in my case, this was caused by liquid damage. It didn't start immediately, but after a few weeks.

I dont know why this is, so I installed hwmonitor and its not showing me all the info you're seeing

 

[Audit13]

nope I am normally careful with liquids, especially after I spilled some drops of water many months ago but it was a long time ago and I took all the necessary precautions to avoid damage ..not sure if something that happened that long ago would affect anything?

After being exposed to liquid, especially if it was something other than distilled water, it's important to immediately power off the Macbook, remove the bottom cover, disconnect the battery, and clean all of the affected parts with pure isopropyl alcohol.

As the liquid dries, the residue that remains in contact with the logic board can slowly cause corrosion. This process could take hours to months to manifest itself.