Signs of low gas in the car cooler

One of the signs of low cooler gas is the presence of a bubble under the side glass or gas window (which itself is a result of a lack of refrigerant and its conversion to gas, and not due to the presence of air, which if a very small amount of it is inside the system, causes severe disturbance in the work of the cooler), the compressor working all the time, the coolness of the cooler decreases, and the water cannot penetrate into the refrigeration cycle. If this happens, the compressor will completely stop working.

Also, the reason for the bad and unpleasant smell is the deposition of water droplets caused by the distillation of air steam on the grids (fins) of the evaporator coil or the cold radiator that is placed behind or in front of the heater radiator and the absorption of dust and pollutants in the air. The fins of the coil will cause a bad smell and block the path of cold air, which will eventually reduce both the cold and air flow of the cooler.