The condenser is a long tube that goes back and forth through a multitude of cooling fins. It is mounted in front of the radiator to take advantage of the forced air provided by the fan and the motion of the car. As the highly pressurized refrigerant (vapor) flows into the condenser, it gives off heat and warms the condenser. This causes the condenser to be hotter than the forced air coming through the condenser. The condenser hands its heat off to the forced air and turns the refrigerant back into cool liquid in the expansion valve, where it heads back to the evaporator.
Air Conditioning condenser is one of the air conditioner parts that need to be checked whenever the temperature it provides becomes abnormal, so to maintain utmost operation. If the radiator of the automobile works hard to maintain the temperature of the engine, the a/c condenser works just as hard for the air conditioning system by keeping the refrigerant cool. Thus proper maintenance is needed, or replacement may be necessary.