Access to SMC

[robot]

I have just re-installed the OSX
I have re-installed Macs Fan Control
However, when I try to change the fan speed I get this error!
"Unable to acquire exclusive access to SMC service. Maybe likely it's in use by another (fan controlling) application. Try to restart the app"

I guess I need to disable the Macs 'built in' fan control ?

[DreamSeason]

Try resetting the NVRAM first.