Why is the central air conditioner iced up?
A central air conditioner is different from a window or wall unit in that it cools the whole house or business. The most common reason for ice to be forming on the air conditioner is that the filters are clogged. In an air conditioner for your home, the filter is the same one as the burner for your heat. I change mine on the 1st of the month. Twelve filters cost about $.50 each so for six to eight bucks you can save yourself the cost of a service call. Don’t buy the pleated filters – they restrict too much air, causing ice buildups.
