66 ac compressor always on

The compressor in my 66 Malibu is always "on" or should I say engaged unless I disconnect the wires to it. This shouldn't be the case should it? I can move the selector switch to outside air and even over to heat and it says on.

Also, the fan switch, all the way to the bottom is off, then as you come up it's high, med, low. Is this correct?

Thanks!