Written Written Written An air conditioner works by absorbing the heat and displacing it into another location.In the case of the window air conditioner, the side of the air conditioner that faces out the window is the side that the hot-air would blow out of.The Compressor acts as a pump, pushing refrigerant (in gas form) into the Condenser Coils (where the gas is condensed into a hot liquid.) The Condenser Coils dissipate heat as the liquid travels through them, and the condenser fan helps assist in this process. Once the refrigerant travels through the condenser coils it travels to the evaporator coils. As the refrigerant passes through the Evaporator Coils, it expands into a gas which makes the coils cold. The gas flows through the coils into a suction line which pulls the refrigerant back to the Compressor and the cooling cycle continues.- How to Fix an Air Conditioner - Common Air Conditioning RepairsIf the hot side of the air conditioner is in the house, then the hot air will be blown into the house.