MacBook pro M3 16 Fanes ''Turned off by hardware''?

the Mac spins the fans up to a predetermined (measured) RPM setting after examining internal temperature setting multiple times a second. This runs in a feedback loop. As temperatures climb, fan speeds are set faster. if it crashes, the fail-safe default is MAXIMUM fan speed.

This is a great job for a computer, but complete nonsense to be doing manually.

It is likely that the report you are getting indicates that that Add-on App can no longer get access to hardware to change the fan speeds to faster.

My recommendation:

Stop anguishing over this issue. Your Mac can and does cool itself very nicely without your intervention.

Please get back to your important work! Despite recent advances in AI, computers can not replace YOU!

Clever third party apps designed to override a Mac's cooling system will absolutely, positively result in premature hardware failure.

Let your Mac work the way it was designed to work. Rule 1 of Macs is don't install junk.