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Winter is approaching. In winter, many car owners like to turn off the air conditioning heater for a long time, so that a large number of bacteria have the opportunity to multiply in the car, but people do not notice. Therefore, when you feel headaches, dizziness, and respiratory discomfort, there is probably a problem with the air in the car. 
Use air conditioning in winter to first block the pollution source in the car
Due to the cold weather in winter, the window opening time must be much shorter than usual. Try to reduce the amount of odor-prone items in the car and plug the pollution from the source. Indoor and outdoor temperature differences between the hot and cold will produce moisture, sweaters, shoes, dirty cloth and other items in this environment is very easy to produce mold, so should avoid placing such items for a long time in the car. Instead, you can put pineapple, lemon, etc. in the car. These fruits not only taste fresh but also do not pollute the air duct.
Keep air conditioning duct dry before parking
Due to the temperature difference between the inside and outside of the air-conditioning duct after heating, damp water is often generated on the air duct and the air-conditioning filter element. Preventing the production of wet fog is very simple. You can turn off the heating for a few minutes before parking, open the natural wind for a while in the open state of the outer circulation, so that the temperature inside the air-conditioning duct will be close to the outside temperature, thus ensuring relatively dry within the air-conditioning system. .
Change air conditioner filter regularly
Cleaning the air conditioning filter is also the key to keeping the air in the car clean. Here is a simple method, under normal conditions, an original air conditioning filter life is 30,000 kilometers or a year. The method of removing the filter element by yourself every month is very simple. Most of the air conditioning filters of the small car are under the front windscreen of the car and are covered by a diversion tank. When the filter is replaced, first open the engine cover. Remove the clamps from the fixed flow tank and remove the flow tank. The air filter can be seen.
Winter car air conditioning maintenance methods:
1. Clean the air filter regularly, usually clean it once every two or three weeks;
2, protect the condenser and evaporator heat sink. The fins of the condenser and the evaporator are formed by inserting a 0.15 mm aluminum sheet into the copper tube and then expanding the tube, failing to collide, if the heat sink is damaged. It will affect the cooling effect of air conditioning;
3, protect the refrigeration system. If the connecting pipe or damaged parts of the refrigeration system, the refrigerant will leak, causing the air conditioning refrigerant can not;
4, the correct choice of fuse. Select the fuse size according to the rated current indicated in the product specification. If it is too large, it will not achieve the insurance effect. If it is too small, it will often melt.
5, air conditioning hand control stop, open operation time should be more than 2 minutes, can not be continuous stop, open.
6, to prevent electrical system moisture. After the electrical system is exposed to moisture, it is easy to leak electricity. Therefore, the electrical system should not be flooded, especially during the rainy season, and more attention should be paid to moisture protection.
7, pay attention to the operating sound of air conditioning . If you hear unusual noise during air-conditioning operation, such as metal impact noise, motor noise, shell vibration sound, etc., should immediately shut down to check the cause.