If you try to blow cool air into your car and then cool down or even make a breeze, there could be a technical breakdown. Before looking for a car AC repair shop, it's a good idea to familiarize yourself with the internal operation of the cooling system.

Potential Problems:

Car air conditioning works through a complex interaction of the below-discussed components and a number of things can cause damage to the system. There are some typical warning signs that indicate the need for auto air conditioning repair. Poor airflow can be caused by a broken hose, worn seals, mold or mildew, or fan frying. 

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On the other hand, if the air conditioner runs for a short time and then generates heat, there are four possible causes: leakage, blown fuse, damaged compressor clutch, or blocked expansion valve. In some cases, an unpleasant odor may come out of the opening. This could be caused by old filters or shapes in the evaporator housing.

The Components:

The air conditioning system consists of four main components. First, the compressor does exactly what the name suggests. It compresses the refrigerant gas. The evaporator then extracts heat from the air and passes it through the refrigerant. Then heat exits and moisture escapes, reducing the overall temperature and humidity in the car. 

Capacitors also play an important role. Its main function is to keep the refrigerant cool by converting the heat from the gases in the compressor into a high-pressure liquid. The end component is called an open pipe or expansion valve, depending on the vehicle. This converts the liquid refrigerant from the condenser to a lower pressure liquid to enter the evaporator.