Why do air conditioners blow out white smoke?

[jennifersmith]

I sure that something wrong when I see smoke from my AC. Any one knows that Why do air conditioners blow out white smoke?

[r.bartlett]

probably condensation after defrost...

[mikeref]

High humidity and low fan speed. This happens often with Vehicle air-conditioners when the conditions outside are warm but wet and miserable. It's just fog or mist.

[install monkey]

as mike says running a unit in cooling in low fan speed can create mist- its normal- also recommended to have louvres angled horizontal to prevent dew from forming

[jennifersmith]

Thanks all of you for to solve this problem.

[louiedonovan55]

What kind of white smoke is coming out? Does it have smell? If smells none, probably its a condensation. Be careful also with refrigerant leaks since its very harmful when huffed inside the closed space.
You can also seek professional HVAC advice