Floaty

A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicatorIf you have a horizontal unit, the safety switch will be located in the secondary drain pan. If, on the other hand, you own a horizontal unit that doesn't have a secondary drain pan or you have a vertical unit, then the safety switch will be on the drainpipe.