Why does my car air conditioner leak?

The air conditioning system of the car needs to be cleaned in time. Generally, ventilation in automobiles mainly depends on air conditioning and heating systems, which mostly have internal circulation and external circulation. Internal circulation means that the system sucks air from the car, heats or cools it, and then blows it out from the air outlet inside the car. Generally, there is no air inlet filtering device for internal circulation. External circulation means that air is inhaled from outside the car, heated or cooled and then blown out from the air outlet inside the car. Because the air outside the car will change with different road conditions, such as a lot of dust and choking exhaust gas, most cars have air intake filters, just like the filters of home air conditioners, which are generally called pollen filters or dust filters. Ventilation should adopt external circulation function. However, the heating air conditioning system has been used for a long time, and there are more dust and bacteria on the air duct, heating water tank, air conditioning evaporator and air intake filter, which makes the air blown out of the air outlet in the car unclean or smelly. This requires everyone to clean the heating and air conditioning system correctly to ensure the cleanliness of the ventilation in the car. There are several kinds of general cleaning work. The simplest thing is to replace the dust filter to make the air inlet unobstructed. Secondly, using special cleaning agent to clean the air duct can not only sterilize but also remove the odor; The most difficult thing is to go to the repair shop to remove the bellows as a whole, disassemble the bellows and clean it thoroughly. Car owners can generally do the first two items themselves. Let's talk about the first item first. Generally, the dust filter screen of a car is under the front windshield of the car and covered by a running water tank. The car mainly opens the engine cover first, removes the clip of the running water box, and removes the running water box, so that you can see the dust filter net. Just remove it and replace it with the original one, or blow it clean with high-pressure air and install it as it is. Let me talk about the second item first. There are many cleaning agents in the street to clean the air duct of air conditioner. The owner can choose one and clean it according to the instructions. The general steps are as follows: remove the dust filter according to the first item, then start the vehicle, turn on the air conditioner and select the gear of the air conditioner in the external circulation gear, and then spray the cleaning agent to the dust filter, which is usually a foamed liquid. The circulating air outside the air conditioner will suck the cleaning agent into the air duct. Cleaning agent can sterilize air duct, air conditioner evaporator and heater water tank, remove odor and decompose dirt, which will turn into liquid and flow out from air outlet of air conditioner. Finally, it is best to replace the dust filter, and the air outlet inside the car will blow out fresh air. If the effect is not obvious, the air volume in the air outlet of the car is very small, so you can only go to the repair shop to remove the bellows for cleaning. /show 17760//ZT/ air conditioning /index.shtml air conditioning dust removal and cleaning tetralogy Many people may not have the habit of using air conditioners in winter, but not using them does not mean that they do not need maintenance. Air conditioning cleaning mainly pays attention to four parts: machine cover and filter screen. The dust accumulated in the air conditioning filter will hinder the air circulation and reduce the refrigeration effect. Cleaning method: After the cover is rinsed with clean water, it can be cleaned with a clean soft brush. Rinse the filter screen with plenty of flowing water, dry it and put it back. Note: when the air conditioner is not used for a long time, it must be ventilated, and the blower is turned on for ventilation every 1 ~ 2 months. Axial flow fan Axial flow fan is a long shaft under the filter screen, and its surface is easily entangled with dirt. Cleaning method: As the axial fan is the core component of the air conditioner, it can't be disassembled casually, and it must be operated by professionals, otherwise it will easily cause machine damage. Outdoor unit Outdoor unit mainly plays the role of heat dissipation, and outdoor air also circulates through it. Cleaning method: the outdoor unit of ordinary residential users can be washed with clean water. If the outdoor fume is heavy or close to the road, professional cleaning solution is needed to clean it in place. Dust accumulated in the drain pipe for a long time may block the drain pipe and make the air conditioner leak. Cleaning method: cleaning here is generally carried out by professionals.