The air conditioner has been used for a long time, and when it is turned on, it will emit an odor, which is very unpleasant and affects the air at home. In order to improve this phenomenon, I specially found a professional air-conditioning maintenance master to check and clean up. According to the maintenance master, there are many reasons why air conditioners smell. They are:

Causes of odor in air conditioning

1

Reason 1. After the air conditioner has been used for many years, a certain amount of dust will be squeezed inside the indoor filter screen and copper sheet, which will produce a certain smell after accumulating to a certain amount. As the air conditioner is turned on, the odor emitted by the air conditioner will drift into the air.

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Reason 2: In many cases, after the air conditioner is cooled and heated, there will be moisture inside the indoor unit, so when the air conditioner is turned off, the air conditioner without drying and mildew-proof function will stop immediately, so the moisture inside will always exist, and it will produce mold for a long time, which will naturally produce a musty smell.

three

Reason 3: The system has not been running for a long time, and the fins of the heat exchanger are almost full.

four

Reason 4: Some inefficient filtration systems at the end of air supply, such as computer rooms and hotel rooms, are well decorated, and fresh air and air conditioning supply are filtered, but dust can still be found near some indoor air supply outlets and on the surface of window sills, and a layer of dust is also attached to the surface of internal components.

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Reason 5: After the air conditioning system is started, the indoor bacterial concentration and odor increase instead. This is because the condensed water on the heat exchange coil, fins and their peripheral components 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 by the system drive and become the source of odor. It is believed that a large amount of dust accumulated in these places brought by fresh air not only carries microorganisms, but also provides indispensable nutritional conditions for microbial reproduction.

Air conditioning cleaning after air conditioning odor cleaning.

Do more 1 step at a time.

Cleaning the filter is not enough. Cleaning and disinfection of radiator is the key. At present, most families usually only stay at the filter screen level. In fact, this can not completely eliminate the pollution caused by air conditioning. Because the filter screen only filters a part of the dust, some dust will still accumulate on the heat sink through the filter screen, and a large number of germs will accumulate. After knowing the real cause of air conditioning pollution, we can do 1 step more each time to clean the air conditioner, and clean and disinfect the air conditioner radiator at the same time as cleaning the filter screen, thus effectively restraining the indoor air pollution caused by bacterial growth of the radiator.