Maintenance of car air conditioners

Replace the dust filter

Routine air conditioning system cleaning includes changing the filter element, applying detergent, and removing it for cleaning. Replacing the dust filter is the easiest way. The cost is low, but the air intake can be kept unobstructed. Car owners with a little mechanical knowledge can clean it by themselves. In most small cars, the dust filter is located under the front windshield of the car, covered by a gutter. When replacing the dust filter, you can first lift the engine cover, remove the clip fixing the water tank, remove the water tank, and you can see the dust filter. If the dust filter has not been used for a long time, you can blow it with high-pressure air; if it is blocked, just remove it and replace it with an original dust filter, and then install it as it is.

External circulation air duct sterilization

There are many kinds of cleaning agents for cleaning air ducts on the market, and car owners can choose them by themselves. Remove the dust filter, start the vehicle, turn on the air conditioner and put the air conditioner in the external circulation block, spray the foam cleaning agent to the dust filter, the external circulation air of the air conditioner will suck the cleaning agent into the air duct, and the air duct will be cleaned. , Air conditioner evaporator and heater water tank decomposed products to sterilize and remove odor, the dirt will turn into liquid and flow out from the water outlet of the air conditioner. After the cleaning work is completed, it is best to replace the dust filter, and the air outlet in the car will blow fresh air.

Send to repair station for cleaning

Replacing the dust filter and cleaning the air duct with cleaning agent are all cleaned from the outside of the air conditioning system. If the air volume of the air outlet is still small after cleaning, and the odor is not completely eliminated, you can only go to the repair shop to remove the bellows and replace the evaporation. and manually clean the air conditioner heating unit casing. However, the bellows is generally installed under the dashboard of the car, which requires a lot of maintenance work and high costs.

Sterilize with ozone

Use high-concentration ozone water to sterilize car air conditioners. It is understood that ozone water is one of the strongest oxidants currently available, which can easily oxidize and denature the protein shell of bacteria and fungi, quickly kill bacterial propagules and spores, and destroy Escherichia coli, Staphylococcus aureus, hepatitis virus, Oxidative decomposition of cold virus. Ozone is active in nature and can be automatically reduced to oxygen at room temperature. It is the most environmentally friendly sterilization substance at present.