Vehicle ac repair

A vehicle ac really helps keep you cool during hot weather as you drive around various places and repairing a spoilt AC is easier to do nowadays. The AC has five major parts and these are the compressor, the condenser, the expansion valve, the evaporator and the drier or accumulator. These parts are connected using pipes and tubing’s and utilize refrigerant to carry heat from one component to the other. When you notice any problem with the functioning of the AC or if it does not work when you turn it on you should call an air conditioner qualified technician to fix it. The EPA has regulated that technicians who handle refrigerant must be certified and you should always ensure that the technician who comes to fix your AC is certified.

The technician will first carry out a diagnosis to determine the problem and he will then provide you with the quotation of how much the job will cost. He will start by checking the pressure of the system and if it is too high then one of the valves could be jammed or the system could be clogged thus using more energy when trying to operate. Then if it is too low it could indicate leaking of either air or refrigerant. This can be fixed by sealing the holes or by replacing pipes and valves. The refrigerant leaks can only be detected using a special dye that can be seen using a backlight. This is because refrigerant evaporates when exposed and it leaves no trace. He will then recharge the system with the appropriate amount of refrigerant according to the manufacturer’s requirements. Then the technician will do a performance test. He will turn on the AC to see how it responds. If he notices that when the AC is tuned on it first starts out cool and later gets warmer it could be either one of these issues

The expansion valve could be clogged with dirt or other materials. This will prevent the refrigerant from getting to the evaporator and the refrigerant could freeze the valve. The technician would have to unclog the valve and determine if it needs to be replaced

The compressor clutch could be dysfunctional and thus the compressor cannot respond when the AC is turned on. The technician would have to fix the compressor clutch

This could happen if there is a problem with the fuse and the fuse would have to be replaced

It could also be a leakage problem when the moisture mixes with the refrigerant then becomes corrosive and starts damaging the parts. The leak would have to be identified. The system will be evacuated and then refilled with refrigerant to the specific required level. If your car is an old model the technician will offer to retrofit your system with the new environmentally safer refrigerant known as -134a.This refrigerant will require him to alter some of the parts of the AC so they can perform well with the new refrigerant.