Fan turning ON and OFF every 3~5 secs.

[iJON54]

I changed the HDD to SSD of my Mac Mini Late 2014 and in the process, I damaged some of the heat sink fins while pulling out the Logic Board and broke the IR connector while disconnecting it.

I need a lot of advise from you guys with this kind of behavior my Mac Mini is showing (1. fan turning ON and OFF every 3~5 secs., 2. not booting or any other activities).

Do I need to replace it or there's still hope?

Thanks in advance.

 

[ElectronGuru]

Even knocking out the thermal sensor wire the Mac will go into emergency mode with fan always running. But this sounds worse than that, needing professional review ($$).

 

[Dr. Stealth]

I also did the same upgrade a couple weeks ago and broke the IR connector.

I should have been a little more careful...

I found a used one online for $40.00 and now all is well.

Not sure what else is going on with your fans.... Maybe have another look inside for anything loose or disconnected?

 

[iJON54]

I ripped the IR connector that is attached on the board itself.

I can live without the IR but I can't make it boot. Hopefully somebody will enlighten me with my situation now.
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Even knocking out the thermal sensor wire the Mac will go into emergency mode with fan always running. But this sounds worse than that, needing professional review ($$).

Need to find that thermal sensor wire to check if I touched it, hopefully this can remedy my situation. Thank you for the input.