When do I need to replace the car air-conditioning refrigerant? Here are some tips for you.

When do I need to replace the car air-conditioning refrigerant? ? Here are some tips for you.

First, blowing test

Turn on the air conditioner normally, and the wind blowing on the body after a few minutes feels very cold and reaches the set temperature within a certain period of time , Which shows that it is normal. Otherwise, you need to find a professional to test the car air-conditioning system to see if you need to add refrigerant.

2. Use a thermometer to measure the temperature

Use a thermometer to measure the temperature difference between the air inlet and the air outlet of the indoor unit of the air conditioner. If the temperature difference is above 8°C, it is normal. The larger the temperature difference, the air conditioner is The better the working condition is, it can generally reach about 15°C. If the difference is less than 8°C, refrigerant may need to be added.

3. Observation at startup

After turning on for more than ten minutes, open the panel of the indoor unit of the air conditioner, and see that the evaporator copper tube is evenly covered with condensed water on the parts for cold and heat exchange. Normally, when the air humidity is high, there will be more condensed water, and vice versa. If half and half do not, there may be a lack of refrigerant. Partial frost or ice formation is also abnormal.

Four. Detect the indoor unit

Users who have used it for more than half a year can check whether there are obvious signs of oil leakage at the pipe joints of the indoor unit and the valve of the outdoor unit. If there is obvious oil leakage, it indicates that the machine is leaking, because the oil and fluorine are mutually miscible and the oil will leak fluorine, and the fluorine will leak oil.

　　 In addition to the above conventional judgment methods, professionals remind consumers that if the cooling effect of the air conditioner is not satisfactory, be sure to ask professional car maintenance personnel to conduct a test to determine whether it is necessary to add refrigerant (add fluorine) , Don’t add refrigerant blindly by yourself!

How to choose automobile air-conditioning refrigerant?

　　? Tips: 1. Choose the original refrigerant from the car factory or the pure R134a refrigerant, which can best protect the air-conditioning compressor. The use of counterfeit refrigerant will greatly reduce the life of the compressor, cause the air-conditioning system to leak, and cause the car owner Cause serious losses. We can distinguish the authenticity by looking at the packaging printing, anti-counterfeiting trademarks, production details, etc. The incomplete ones are definitely not produced by the original factory; second, depending on the brand, car owners should choose car refrigerants with stable quality, such as, car servants, Jin Leng and other major brands. Small repair shops have many different brands, and car owners can also judge the quality of refrigerants by comparing the weight of different brands of products. Inferior and counterfeit refrigerants are usually underweight. In the future, we will introduce the weight of refrigerant packaging tanks and how much refrigerant can be added at a time. Achieve the best cooling effect.

? Car refrigerant-make the cooling unstoppable!

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