When you would try to blast such cool air in the car and all you would get is that uncool or hot breezes, then you should be aware that there can be some kind of technical malfunction. Prior to seeking out such car air conditioning repair service, it would help you to know a little bit about the inner functioning of the cooling system.
The air conditioning system comes with four main components. The first thing that you must know is the compressor. The function of this is to compress the refrigerant gases. Also, you have to know regarding the evaporator that would get heat from the air and pass such to the refrigerant agent. What happens next is that the heat would boil off and then have the water vapor which would reduce the overall temperature and also the humidity levels in the car. Such condenser is going to play a really important role. The primary function is to keep the refrigerant cool by converting heat from such gases in the compressor to that highly pressurized liquid. The final component is called the expansion valve or such orifice tube that depends on the type of vehicle you own. This is actually responsible for changing such liquid refrigerant that comes from the condenser and make it a lower pressure liquid going to that evaporator unit.
Know that such car air conditioner would work through that complex interplay of those components mentioned and other things which may cause some problems with the system. There are many typical signs that may warn you that your car needs air conditioning repair. You must know that such weak airflow can actually be caused by those broken hoses, worn down seals, burnt ventilation fan and also mildew or mold. On the other hand, such cooling capabilities of the AC system can be reduced by having such damage in the condenser or the evaporator or when there is a chemical or vacuum leak or such blown fuse. If the AC works just for a short period of time, then there is warmth produced and there can be some potential problems in such including clogged expansion valves, leaks, blown fuses and those problematic compressor clutch. In a few cases, bad odor may actually come out from those vents. Such can actually be a result of that old filter or the mold that is in the evaporator.
For you to get some savings in money and time, then you can actually use those home kits so that you can check out the basics. However, it would be a great thing that you would get an expert or a professional to provide those air conditioning repair services to be sure that issues are really dealt with accordingly.