Why is there water under a car when running air conditioner?

that is because of the vibrator and you ll notice that water will increase

in the high humidity. and it is a sign of a good a/c you have ( cool )

Answerthe water is actually condensed frozen water, frozon by the air conditioning system Answerit isn't water its air conditioning fluid that leaks from the air conditioner and creates condesation on the pipes which then drip what appears to be water on the ground