Why is the air from the air conditioner so smelly?

First, air conditioners, especially traditional split air conditioners, have accumulated a certain amount of dust in aluminum bars and copper sheets after years of use. When the dust is squeezed to a certain amount, the air conditioner will produce a certain smell, which will drift into the air with the use of air conditioner to form a daily smell.

In many cases, there will be moisture inside the air conditioner, so after the air conditioner is turned off, the air conditioner that is not dry and mildew-proof will stop immediately. In the long run, mold will be produced and there will be a musty smell.

Secondly, in the central air-conditioning market, some air outlets at the end of air supply have very efficient filtration systems, such as computer rooms, hotels and other places. Although the interior decoration is very good, and there are even some high-end equipment such as fresh air, there is still dust accumulation near the indoor air outlet, and dust will stick inside the air conditioner, which is one of the reasons for the odor of the air conditioner.

Thirdly, after the air conditioning system is started, the indoor bacterial concentration and odor increase, which is due to the stagnation of heat exchange coils, fins and their peripheral components. The remaining condensate slowly evaporates, forming a high humidity (and high temperature) condition around the coil, which becomes an environment suitable for microbial reproduction. A large number of gases produced in the process of reproduction are suddenly released due to the drive of the system and become the source of stench.

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Maintenance and cleaning methods of air conditioner

1. Remove the sundries in the vent to ensure normal ventilation. Observe whether the outdoor rack is loose, and clean the outdoor ventilation net cover for foreign objects. At the same time, keep the vents open.

2. Clean the surfaces of indoor and outdoor heat exchangers to improve the efficiency of heat exchangers. When cleaning the indoor heat exchanger, carefully remove the panel, scrub it with a soft rag, and gently scrub the heat exchanger of the indoor unit with a small brush to remove the harmful accumulation of dust and breeding bacteria. However, it should be noted that the heat sink is very thin aluminum, which is easy to deform after being stressed, so brush it carefully.

3. Remove the dust from the filter screen. When cleaning the filter screen, cut off the power supply first, and then open the air intake grille; Take out the filter screen, clean the filter screen with water or vacuum cleaner, the water temperature should not exceed 40 degrees, clean it with hot wet cloth or neutral detergent, and then wipe it with dry cloth. At the same time, it is not allowed to clean the filter screen with pesticides or other chemical cleaners.

4. Remove dirt and deposits from the drainage part. The drainage part is easy to deposit dirt, so it must be disinfected thoroughly on a regular basis to ensure smooth drainage and prevent bacterial reproduction.

5. Check others. Comprise a power cord, a plug board and a switch; Check the status of consumable parts, such as air deflector, sterilization and dehumidification, photocatalyst, etc. , to ensure that the air conditioner is in good condition.

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