I had this problem once. Wretched thing spamming my terminal. GRRRRRRR!
The problem was that the temperature-monitoring program was not calibrated for my sensors. So it thought it was too hot when it wasn't. I had to find the program that was doing this, and disable it (Sorry, I forget its name now, but try looking in "System Services", or whatever FC calls it, find the program that is monitoring the temps, turn it off, and set it "Do not start at Boot").
Peace at last, and my PC running happily (& cool!)