95 LHS Fans Loud

Hi my a/c doesn't work which I don't care about right now, but when I press any of the buttons on the climate control (top ones) the extra fan comes on and makes the car sound loud. I know this fan aslo comes on when the car gets to hot to help the other fan cool it down. But is there any way to make it come on only if the engine is getting to hot only.

Thanks