Let’s take a look at the reasons why the car air conditioner is not cooling.

Summer is the season when car air conditioners are used most frequently, and it is also the season with the most air-conditioning failures. Today, I will talk about the reasons why car air-conditioners are not cooling, so as to make it easier for you to find faults. To solve it fundamentally, let's take a look.

1. Lack of refrigerant

Generally, car air conditioners will add refrigerant once every 2 to 3 years. Is the refrigerant in the car flying away? Why do you add it frequently? Does the air conditioner have a sealing device? Besides, according to the physical reaction of air conditioner refrigeration, there is no need to consume too much refrigerant, how come it is gone. In fact, even if the air conditioner is very tightly sealed, it still cannot withstand the refrigerant flying away, and there are slight leaks in the air conditioner pipeline or condenser. The main reason for the loss of refrigerant is leakage. If your car has bad air conditioning and it starts to fail after a period of time after adding refrigerant, you should pay attention to it.

This situation usually occurs, most of which is the rhythm of bloodletting. If the condenser leaks, the condenser needs to be replaced. The method of checking the leak is also more troublesome. Generally, special glasses are used to add a fluorescent agent to the fluorine oil. Check it and you can find out where the leak is! There is a relatively simple way to apply when the leak is serious, you can see through the net that there is oil and humidity on the surface of the condenser. In this case, it is usually condensation. The device is leaking.

2. Damage to the air conditioner flap

This fault is relatively rare and not uncommon. If there is a problem with the flap motor, it will be troublesome. The flap motor is generally located in the lower part of the dashboard, which is the main switch of the air-conditioning vent. If it is broken, it means that the switch is broken. Even if the air conditioner can cool, the cold air can only pass through the cracks. Drilling out, it means drinking poison to quench thirst. When you find that all the wind does not come out after turning on the air conditioner, you should be careful. Replacing the flap motor requires dismantling the instrument panel, which is a huge project.

3. The condenser is too dirty

In summer, it is often found that the air conditioner is bad, and there is no problem with the air conditioning system. The high and low pressure are basically normal. Go to the 4s shop to repair the car It is often recommended that car owners do a water tank cleaning activity. The purpose of cleaning the water tank and the condenser is mainly to dissipate heat. If poplar catkins and catkins stick to the condenser in the spring, it will cause the engine temperature to be too high or the air conditioner to be poor. There was a lot of hairy. When cleaning, be sure to blow clean with a blow gun first, and then clean with a water gun. Otherwise, it will be counterproductive, not only bad fuel consumption of the air conditioner will increase.

4. Damage to the air-conditioning compressor, throttle valve or expansion valve

There is a sentence in the air-conditioning compressor circle called 'low pressure is high, high pressure is low Change the compressor'. The probability of damage to the air-conditioning compressor is small, so don't worry too much. As for the failure of the expansion valve and throttle valve, it directly leads to poor air conditioning. These inspections are cumbersome and need to be repaired at a professional 4S shop.

5. The belt is aging too loose

I checked all the equipment of the air conditioner, and found that there was no problem. Then what went wrong what. In fact, the belt is also a relatively neglected component. Generally, the 4s shop will remind you to replace the belt during maintenance. If it is not replaced, it will slip during the use project, which will cause the belt to break, abnormal belt noise, no power assistance, poor air conditioning, etc. . Therefore, it is necessary to check the engine belt.

I checked all the equipment of the air conditioner, and found that there was no problem. Then what went wrong. In fact, the belt is also a relatively neglected component. Generally, the 4s shop will remind you to replace the belt during maintenance. If it is not replaced, it will slip during the use project, which will cause the belt to break, abnormal belt noise, no power assistance, poor air conditioning, etc. . Therefore, it is necessary to check the engine belt. The above is a brief explanation about the non-refrigeration of air-conditioning refrigerants. If you have other related questions, you can directly consult the customer service, and we will reply to you as soon as possible!

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