The cold air coming out of the vents may just be cool, or even be warm. If this happens, turn the air conditioning off—switch on the heater if you can stand it—to let the ice melt.

Air conditioning ‘just doesn’t work’ for buses: STM By JAMES MENNIE The Gazette Posted August 27, 2010 10:49 am 2 min read ...

Understanding how your car’s air conditioning works can result in an understanding of the repair bill Air conditioning, part 2: When refrigerant isn’t what it seems ...