Why does the air conditioner always have a damp and unpleasant smell?

The main cause of the smell of moldy air conditioners.

1. The air conditioning filter (also known as the air conditioning filter) mainly filters the air, and the air will reach the evaporator and enter the car after the air conditioning filter, so the air conditioning filter plays an important protective role. BMW uses high-efficiency air conditioning filters that can effectively block dust, pollen and particles less than 5 microns in diameter. The air conditioner filter element will absorb the moisture and dirt in the air during operation, and it will accelerate the breeding of bacteria and mold on the surface of the air conditioning filter, and the dirty filter element will not only not play the original role, but also cause secondary pollution to the air entering the car, and the source must be blocked if you want to completely remove the odor in the car, so it is particularly important to regularly check and replace the air conditioning filter.

2. The evaporation box is a part of the air refrigeration in the vehicle air-conditioning system, which is installed in the internal instrument panel of the compartment, which is composed of two parts, the evaporation box shell and the evaporator. The refrigerant-filled evaporator is located inside the casing and reduces the air temperature by absorbing a large amount of heat from the surrounding area. While cooling, the water vapor in the air will condense and form water droplets as it passes through the evaporator blades, so there will be water flowing out from under the chassis of the car when the air conditioner is turned on.

We all know that dark, damp, and warm are the three major conditions needed for mold growth, and the car air conditioning system has the above conditions, and almost all car air conditioners cannot avoid the growth of mold on the evaporator.

The mold on the evaporator of the air conditioner will not produce peculiar smell when the surface is dry, but when the air conditioner turns on the refrigeration, condensation will be produced on the surface of the fins on the evaporator, infiltrating these polluting substances, some of which are dissolved in the water, and then evaporated into the air with the water, the smell will be emitted into the car, and the smell will be smelled, which explains why the smell is the heaviest when the air conditioner is turned on in summer, and the smell will be reduced after the odorous substances are gradually volatilized over time.

Here is a suggestion for you, the air conditioning system is the most likely place to produce mold in our car, and in the summer we turn on the air conditioning will not open the windows, which will cause potential hidden dangers to our body, and if the air conditioning system has a peculiar smell, it will also make people in a confined environment feel uncomfortable driving for a long time. While you are cleaning the evaporation tank, it is also recommended that you renew the cabin air filter twice a year, and the purpose of replacing it is to avoid mold and odor after the cabin air filter is too dirty.

The air conditioner has not been thoroughly cleaned for a long time, and the air outlet of the air conditioner may have dust and mildew, which needs to be cleaned and maintained frequently, and the room should be ventilated frequently.

That's what says about your dust filter. Already. The original weight is contaminated and needs to be cleaned or replaced.

Hang-up, cabinet or **air conditioner?

Try to clean the filter of the lower air outlet by yourself, if there is still a musty smell, it is time to clean the air conditioner.

Don't take it seriously, mold in air conditioners can have a big impact on health.

This air conditioner is equipped with a dehumidification function.

It's best to clean it up once a year.

Causes of odor from air conditioners:

1. The air conditioner that has not been used for a long time will also produce peculiar smell when it is started, because the condensate retained on the heat exchange coil, fin and its surrounding parts slowly evaporates, forming a high temperature condition suitable for the reproduction of microorganisms around the coil, and a large amount of gas produced when the microorganisms reproduce will be released under the drive of the air conditioning system and become the source of foul odor.

2. If the air conditioner runs for a long time, the air conditioner's filter screen and copper sheet will squeeze a certain amount of dust, and the heat exchanger fins will also be full of dust, which will cause blockage after accumulating to a certain amount; A certain odor is generated, and as the air conditioner is turned on, the odor from the air conditioner will drift into the air.

3. Because the air conditioner is refrigerated and heated, in many cases, there will be moisture inside the indoor unit, so when the air conditioner is turned off, the air conditioner without dry and mildew prevention function will be shut down immediately, so that the internal moisture has always existed, and mold will be produced in the long run, and the musty smell will naturally occur.

4. Some non-high-efficiency filter systems at the end of air supply, such as computer rooms, hotel rooms, etc., although the interior decoration is good, and the fresh air and air supply of air conditioners are filtered, 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 adhered to the surface of the internal parts of the machine. It is believed that the large amount of dust brought by fresh air and accumulated in these places not only carries microorganisms, but also provides indispensable nutrients for microorganisms to multiply, resulting in odors in air conditioners.

5. If you often smoke, spray perfume, make up and so on in the air-conditioned room, then the air conditioner in the room will go through the circulation of the air-conditioning evaporator (indoor unit) for a long time, adsorbed on the evaporator or filter screen, after a long time, the air conditioner will have a strange smell when it is just turned on, so the air-conditioned room should be kept clean.

Hello, check whether there are foreign objects in the air conditioning pipeline, and clean the air conditioning line in time. It is not cleaned, or the room is small and ventilated.

It can be done in this way, 1Turn off the power switch and unplug it. 2.

Review the design style of the panel and decide how to open it. 3.Push the panel up and gently remove the strainer.

4. Mix detergent and water into an appropriate concentration of cleaning liquid; 5.Place the strainer in a container, wash it for 10-15 minutes, and then replace it with clean water. Do not immerse the small motor in water or wash the small motor with water.

6. Wipe the outside of the air conditioner with a clean cloth dipped in wet cleaning solution; 7. Use a small brush to clean the dust at the air outlet of the air conditioner; 8.Reinstall and replace the filter and panel.

Questions. It was before.

I found a professional to clean it.

Nothing to use. There should be or there is.

Is there a problem?

Cleaning personnel, there is no reason for inquiry, is there a check on the external machine.

Questions. Just after cleaning up, he opened the empty debugging and tried it.

If it is caused by sterilization, remove the filter again, and then put some cleaning solution on the filter to clean it several times. If there is still a smell, it may be caused by long-term lack of ventilation indoors, check the inside and outside of the air conditioner to see if it is cleaned.

The radiator in the air conditioner should also be cleaned.

The main reason for the odor of the air conditioner is that after the air conditioner is used for a long time, a certain amount of dust will accumulate in the internal filter and other equipment parts, and dust will also accumulate between the gaps of the heat exchanger. Too much dust, easy to cause blockage, the formation of odors.

When the air conditioner is turned on, the air from the air conditioner diffuses with an odor. When the device is running, there will be a certain amount of moisture inside the indoor unit. Therefore, after the equipment is shut down, the air conditioner without dry and mildew prevention function will be shut down immediately, and some moisture will accumulate in the air conditioner, which will produce musty smell and musty smell for a long time.

When the air conditioner is not used for a long time, turning on it will also produce some odors. This is because the condensate on the heat exchanger coils, fins, and their peripheral components slowly evaporates, making it easy for microorganisms to multiply. When microorganisms multiply, the air conditioner releases some gases.

Some air** terminals are non-high-efficiency filtration systems, such as computer rooms, hotel rooms, etc. , the fresh air and air conditioning supply air are filtered, but some dust is found near some indoor air supply outlets and on the surface of the window sill, and some dust adheres to the surface of the internal parts.

It is understood that a large amount of dust brought by fresh air, accumulated in these places, will not only carry microorganisms, but also provide indispensable nutritional conditions for microorganisms to multiply, which is also the cause of odors. At the same time, in environments such as smoking or kitchens, when the air conditioner is turned on, there will be odors, so the air-conditioned room must be kept clean and tidy.

Generally speaking, air conditioners are not thoroughly cleaned after cleaning, because when most people clean themselves, they can only say that they have tasted it, and they cannot be thoroughly cleaned in place. How to deal with the smell of air conditioners is best to find a professional. After all, there are professionals in it.

The solution to the cause of the smell of the air conditioner is as follows:Reasons: 1. The temperature rises, microorganisms multiply, and after the air conditioning system is started, the indoor bacterial concentration and odor increase, which is due to the slow evaporation of the condensate retained on the heat exchange coil, ribs and their surrounding parts to form high humidity (and high temperature) conditions around the coil, and become an environment suitable for microbial reproduction, and a large amount of gas generated during reproduction is suddenly released due to the system drive, becoming the source of foul odor.

2. Dust adheres to the system, the system does not run for a long time, and the heat exchanger ribs are nearly full. Some non-high-efficiency filter systems at the end of the air supply, such as computer rooms, hotel rooms, etc., although the interior decoration is good, and the fresh air and air supply of the air conditioner are filtered, dust can still be found near some indoor air supply outlets and on the surface of the window sill, and dust will also adhere to the inside of the air conditioner.

Clean the evaporator of the inner machine, open the movable shell, remove the filter, you can see the evaporator with metal fins, prepare a bottle of special air conditioning cleaner, spray the detergent evenly into the evaporator in the state of power off, wait for 15 minutes to start the air conditioner, and the dirty things will flow away with the condensate. Find a small brush to sweep the dust off the air conditioner's air outlet, and then install all the removed items back on.

Evaporation box The outside air flows through the evaporation box, it will inevitably bring moisture and dust, most of the water and dust will be discharged from the car through the air conditioning drainage, but there is still a small part may be attached to the evaporation box, and it will produce mildew and rot smell after a long time.

Air conditioner filter The air conditioner filter is mainly to filter the air, and the air will reach the evaporator only after the air conditioner filter, so the air conditioner filter plays the first protective role. In addition to filtering dust, the air conditioner filter will also absorb odors, and if you do not change the air conditioner filter for a long time, the air volume will not only become smaller, but the odor will also become heavier.

Air Conditioning Air Duct Air conditioning air duct is a ventilation duct, which is easy to accumulate dust, but it is often overlooked.

Outside air The smell of the air conditioner also has a lot to do with the use environment, for example, if you turn on the external circulation when the air quality is not very good, then the air conditioner's own filtration system is not so efficient.

Air conditioner is a device that manually adjusts and controls the temperature, humidity, cleanliness, flow rate and other parameters of the ambient air in a building structure. Most of the refrigerant evaporates or condenses under the action of the compressor, causing the surrounding air to evaporate or condense, which changes the temperature and humidity. The air conditioner smelled after being turned on for a long time.

It is recommended to disassemble the filter and other components in the air conditioner in time, which may be caused by the accumulation of dust in the filter screen and copper sheet.

Dust build-up between the heat exchangers is severe, resulting in an increase in the concentration of bacteria and odors in the room after the air conditioning system is activated. Dust accumulates between the fins of the heat exchanger, causing clogging. This is caused by dust adhering to the surface of the air supply outlet and the internal parts of the indoor unit, which is difficult to avoid even in special environments such as computer rooms and hotel rooms where the air is filtered.

Large amounts of dust from fresh air accumulate in these places, which not only carry microorganisms, but also provide indispensable nutrients for microorganisms to multiply.

When the air conditioner is not used for a long time, the smell can be strong because the condensate trapped in the heat exchanger coils, fins, and surrounding parts evaporates slowly, creating high-temperature conditions suitable for the growth of microorganisms around the coils. A large amount of gas produced during the reproduction of microorganisms will be released under the drive of the air conditioning system, which becomes the first odor. The peculiar smell of the air conditioner should not be underestimated, because it shows that the air conditioner has become a hotbed for microbial reproduction, which is easy to cause a variety of infectious diseases, after the inside of the fuselage is filled with a lot of dust, the air ** of the air conditioner will be blocked, the refrigeration and heating rate will be reduced, the noise will increase, and the power consumption of the compressor will increase.

In the process of using a home air conditioner, a comprehensive cleaning and maintenance is carried out once a year from multiple angles. Air conditioners should be disinfected once a month. Every year during the seasonal season, air conditioners should be thoroughly cleaned and disinfected before starting for the first time.

Since people may stay indoors in an air-conditioned room for a long time, indoor air quality directly affects our health, and it is necessary to clean the air conditioner regularly.

It may be caused by dust falling from the filter or the copper sheet inside. The indoor unit absorbs moisture inside, and when the air conditioner is turned off, the moisture stays inside, and it emits a foul smell. This phenomenon can also occur when the air conditioner is not used for a long time.

This phenomenon can also occur when you smoke and wear perfume in your room.

The air conditioner is used every day, and there will be dust in the room, which may fall on the filter screen of the air conditioner when the air conditioner is turned on, and there will also be dust on the copper sheet inside the air conditioner. Because dust falls on the filter and copper sheet, it will cause the air conditioner to have a foul smell when it is turned on. The solution is to remove the filter on the air conditioner every once in a while and clean it.

The copper sheet inside the air conditioner should also be cleaned every once in a while. Only by carefully cleaning can the air conditioner avoid such a smell.

When we use an air conditioner heating system, the air conditioner will absorb these moisture into the air conditioner because it is humid inside. When the air conditioner is used for a long time, the moisture inside the air conditioner absorbs the moisture, and when the air conditioner stops, the moisture stays inside. When we turn on the air conditioner again, a foul smell comes out of the air conditioner.

This is because the moisture inside the air conditioner is not released, resulting in the smell inside, so don't turn off the air conditioner in a hurry every time, you can do a ventilation treatment first, and then turn off the air conditioner, so that it will not absorb too much moisture inside, and it will not cause odor.

The air conditioner has been idle for a long time, because the owner has gone out, or the air conditioner is not used, so the air conditioner will come out of the air when it is used again. It is said that household appliances are not afraid of use, they are afraid of idleness, and they must use the air conditioner every once in a while, so that they will not leave too much moisture in it and will not produce odors. If you have not used the air conditioner for a long time, you must do ventilation treatment before use, and it is best to do a cleaning at the same time, so as to ensure that the air conditioner is safe to use.

If we don't use the air conditioner for a long time, it's best to open the windows for ventilation as well. If someone likes to smoke in the room, and someone likes to spray perfume in the room, these gases will be adsorbed on the filter of the air conditioner, and a peculiar smell will be produced after a long time. If you find that the air conditioner has a peculiar smell, stop it quickly, clean it in time, and do not continue to use it, otherwise it will affect your health.