it does, that's what the switch does. Mine went out so I replaced it. The problem now is that the switch does'nt come on til 225. The original switch came on at 200. so I put a toggle switch on so I can turn the fans on when I need them to. It seems that their is an Inconsistency in the way the fan switch are made. Unless I'm missing something......... :blah:Street Fighter said:It should have a switch that makes it go off at a set temp like the jap bikes.