What should I do if the car air conditioner smells?

In summer, the air is humid and sultry. The first thing many car owners do when they get into the car is to turn on the air conditioner to cool the car quickly. However, with the cold air from the air conditioner, there is a strange smell in the car. What's going on here? Where does the air conditioning smell come from? ?

1. Why does the air conditioner smell?

1. Air conditioning filter element pollution

After summer, people use air conditioners more and more frequently, whether indoors or in cars. Everyone knows a lot about the harm of indoor air conditioning not being cleaned for a long time, and car air conditioning, like indoor air conditioning, will have a lot of harm if the air conditioning filter element is not cleaned for a long time. In daily use, the filter element of automobile air conditioner needs to filter dust, foreign matter, harmful gas and peculiar smell to purify the air. Compared with indoor air conditioning, the pollution sources of automobile air conditioning filter elements are "various". The heavily polluted air conditioning filter elements can not only play a filtering role, but also cause secondary pollution to the air entering the car.

2. There are foreign bodies in the air conditioning duct.

Because the car has been outdoors, it is inevitable that some small insects and other animals will get into or hit the ventilation duct of the car air conditioner. If it is not cleaned for a long time, foreign bodies and dust in the ventilation duct will emit peculiar smell and pollute the air entering the car. ?

3. The evaporation box is moldy

Evaporation box is the device responsible for cold and heat conversion in air conditioning system. When the air conditioning system is running, the air will condense when passing through the evaporation box. The condensed water will not only make the evaporation box wet, but also lead to more and more dirty things attached to the evaporation box. Due to being in a dark and humid environment for a long time, the surface of the evaporation box will be moldy and produce peculiar smell. ?

Second, how to remove the odor of air conditioning

There is more than one reason for the odor of automobile air conditioners, and it is also necessary to "prescribe the right medicine" for different situations.

1. Check the air conditioner filter and clean or replace it properly.

Generally speaking, the filter element of automobile air conditioner needs to be replaced once every six months or 65,438+0,000 kilometers, and the specific replacement cycle is related to the vehicle environment. If you find that the air conditioner has an odor, you can first check the condition of the air conditioner filter element, and then clean or replace it according to the pollution degree of the filter element, and then proceed to the next operation.

2. Clean the ventilation pipes

Because the air-conditioning pipes are interconnected, you can spray the air-conditioning cleaning agent on the air-conditioning filter element, stay for a few minutes, wait for the cleaning agent to dissolve the stains in the pipes, then turn off the air-conditioning button, turn on the air-conditioning external circulation mode, and adjust it to the maximum wind power, so that the air-conditioning system can continue to operate for a period of time. Finally, you can turn the air conditioner to hot air and blow it for a few minutes to dry the water in the pipeline.

3. Check and clean the evaporator

If the air conditioner still has the problem of odor after the above two operations, it is probably the problem of the evaporation box. Because some areas of ventilation pipes and evaporation boxes are difficult to reach by simple operation and need professional tools for disassembly, it is not recommended that you operate them by yourself. If necessary, it is recommended to seek professional help from the car maintenance man car service shop to completely solve the problem.

Summer is sultry and humid. If you find that the air conditioner has an odor, you must check and clean the air conditioning system in time to avoid more harm caused by bacterial growth in the air conditioning system. In addition, like the use of indoor air conditioners, we should not always use air conditioners for a long time in the environment with closed windows in our daily life. The internal and external circulation mode of air conditioner should be used reasonably, and the window should be properly ventilated.