Almost all homes built in the U.S. have air conditioning of some type. In many cases, it’s part of a heat pump system that ...

Packaged systems have their components in one outside unit ... A seasonal energy efficiency rating (SEER) is given to air conditioning units based on the “relative amount of energy needed ...

Internal parts can also fail, leading to no cold air. Not all air-conditioning problems are because the system is low on refrigerant. Some are caused by issues with system parts, such as the ...