A typical central air conditioner is actually made up of two main components - the indoor air handler that contains the blower fan and evaporator, and the outdoor cabinet that contains the compressor and condenser coil. When one half of this dynamic duo conks out, you'll need to replace both halves.
Considering the average cost of replacing a central A/C system, that could be a rather hard pill to swallow. However, the cost of replacing only half of your cooling system could cost you more than you'd realize.
