Among the main causes of non-functioning or poor functioning of the air conditioning in the car is the lack of cooling medium, the natural leakage of which is approximately 10% per year. After several years of operation without maintenance, the level may be low in the system. The air conditioning then cools worse. Degradation of the oil in the system occurs, which binds moisture, causing excessive wear on the compressor because the oil that circulates with the refrigerant in the system does not reach it in sufficient quantity.
Other causes of system malfunction are a clogged dryer, bad expansion valve, damaged compressor, malfunctioning temperature and pressure sensors, etc. We can detect the leakage of the cooling medium using electronic detectors or using nitrogen.
We also repair air conditioners, not just fill them. Non-functioning air conditioning can have several causes, we will figure out where the problem is.