The compressor runs if one of the three left buttons are pressed, it does not run if the Econ or off is pressed.

The temp dial seems to work because if I turn it warmer, the air coming from the vents gets warmer.

I'm just concerned that the compressor is running 100% of the time when one of the three left buttins are pressed. I would have thought that the car gets to the desired temp and the compressor cycles off until it gets too warm.