The Qingming Festival has passed, and the weather is gradually getting warmer. The highest temperature in northern Jiangsu has reached about 25 degrees in the past few days. The dry and hot environment in the car at noon is a bit unbearable without the air conditioner.
You probably haven’t used the cooling mode of the car air conditioner for more than half a year! After some friends turn on the air conditioning cooling mode again, they find that the cooling effect is not ideal or not cooling at all. Is it because they do not need to be broken for a long time?
Don’t worry too much about this situation, the car is not so squeamish, it may be caused by the following situations.
Clogged condenser
Car air conditioners actually work with our home air conditioners The principle is similar, relying on the compressor to drive the refrigerant, absorb the heat around the evaporator, and then volatilize the heat from the condenser, and the refrigerant goes from gas to liquid to achieve the purpose of reducing the temperature inside the car.
Due to the special structure and position of the condenser, it is easy to be blocked by debris such as dust, leaves and lint . Once the gaps of the condenser blades are filled with debris, it will affect the cooling effect of the condenser. If the heat carried by the refrigerant cannot be volatilized quickly, it will be recycled again, so that the cooling effect of the air conditioner will naturally not be good.
Therefore, if the friends find that the cooling effect of the car air conditioner has declined, first check the cleanliness of the condenser before getting off the car.
Clogged air conditioner filter
In addition to the condenser, the air conditioner filter also affects An important factor in “air conditioning refrigeration”. The air conditioner filter element should be familiar to everyone. Its function is to block the dust outside the car from entering the car. It does not actually affect the refrigeration work of the air conditioner, but if the filter screen is seriously blocked, it will affect the air output of the fan, thereby reducing the “cooling effect” of the air conditioner.
General air-conditioning filter elements are installed on the inside of the passenger glove box, which can be seen after removing the glove box. The engine compartment, if it is your own car to maintain, should also be clear. When you have nothing to do, you can clean it regularly. Even if the air conditioner is running normally, cleaning the dust on the filter can improve the air quality in the car.
Of course, there are many situations that affect the air conditioning and refrigeration of automobiles, which are all within the power of the owner. Like those refrigerant shortages/leakages, compressor failures, circuit failures, etc., go to the repair shop, and don’t do it yourself!