12 Swift, where is the right way to turn off the warm air speed switch?

There are three turnable switches under the cd stereo. The first is to control cold and hot air, blue is cold air, red is hot air, the second is wind speed, and the third is wind direction. There is also an air conditioning switch below. The indicator light on the button doesn't light up and the air conditioner doesn't work. The wind speed switch can't turn on the air conditioner.