What is the cause of the peculiar smell when the car air conditioner is turned on?

1. an evaporation box.

Most of the water and dust will be discharged from the car through the air conditioning drainage, but a small part may be attached to the evaporation box, and it will produce mildew and rot odor after a long time.

2. Air conditioning filter.

The air conditioner filter is mainly to filter the air, and the air will reach the evaporator only after the air conditioning 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.

3. Air conditioning duct.

The air conditioning air duct is the ventilation duct, and the air conditioning air duct is easy to accumulate dust, but it is often overlooked.

4. Outside air.

The odor 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, the air conditioner's own filtration system is not so efficient.

Many vehicles smell odors when using heaters. So where do these smells come from and how to fix them?

There are several reasons why cars smell when using heaters:

One, because there is an evaporator.

Also called evaporation tank). The car's warm air mainly comes from the heat from the water tank, which is in the evaporator. Warm air is the cooling system of the engine, and in the process of cooling the engine, a blower is used to blow heat into the cab.

If it is for a long time, a small amount of moisture and dust may adhere to the evaporator, and the evaporator will become moldy, which will produce odors and also affect the air quality in the car.

Everyone must clean up on time at ordinary times. Keep the air in your car fresh.

Second, there is a peculiar smell in the air duct of the air conditioner. The inside of the air conditioner duct stinks due to damp mold. It is recommended to turn off the air conditioner switch, turn on the external circulation air, and continue to blow until the stop is 2 minutes, and then turn on the air conditioner every time. This method dries the moisture in the air duct and prevents mildew.

Third, the air conditioner filter has a peculiar smell. The air conditioner filter has a service life, and if it is broken, it needs to be replaced, otherwise it will also produce mildew and cause odor after a long time. And over time, the bacteria in it will gradually accumulate, which is not good for human health.

After the air conditioner is used for too long, dust will accumulate inside the machine's filter and copper sheet. After accumulating to a certain amount, a foul smell is formed. When the air conditioner is turned on, the smell of the air conditioner wafts into the air.

Therefore, daily driving should regularly check the air conditioning pipes or other parts for debris, dust or stains, and if so, use a special air conditioning cleaner to clean the air conditioning pipes. The cabin air filter is an easily overlooked component, and some car owners don't even know that the air conditioning filter in their car needs to be cleaned and replaced regularly.

A dirty cabin air filter not only filters dirty air, but also causes secondary pollution to the fresh air that enters the car. Therefore, when you usually use it, you must regularly clean your vehicle, maintain your car, keep the car ventilated, and prevent harm to people's health.

It may be that the external circulation is opened, it may be that there are water stains inside the air conditioning duct, the water stains are deteriorating, it may be that the filter screen is moldy, or it may be that long-term smoking has fallen the smoke and dust into the pipe, or it may be that the carpet seat interior is dirty.

It could be a problem with the air conditioner on the car, or it could be a problem with the air conditioning system, or it could be a problem with the evaporator. It could also be some bacteria and mold.

Reasons for the peculiar smell of automobile air conditioners:

The evaporation chamber in the car air conditioner works in a cold environment, and water will be produced when it encounters relatively hot air from the outside world. Therefore, the humid environment of the evaporation chamber and ventilation ducts and the dust deposited on the surface provide a breeding ground for mold and fungus. Once molds and fungi encounter a suitable environment, they will quickly multiply into mold and fungal clusters, and in the process of reproduction, they will produce a rotting odor of objects.

These odors will be mixed with the air conditioning as the air conditioner is turned on, and the entire interior of the cabin will be polluted.

Solution: The musty smell of the wind blowing out when the air conditioner is just started is because there is mold breeding in the air conditioner evaporator. To remove odors, you can do this:

You can find a sunny day to drive the car into the sun, let the air conditioning system in the warm windshield, and then turn the air volume to the maximum, and bask in the state of the doors and windows fully open for more than ten minutes; Take care to check that the air filter's filter is clean or needs to be replaced.

In addition, there are many kinds of cleaning agents on the market for cleaning air ducts of air conditioners, and car owners can choose by themselves.

Automobile air conditioning refers to the air conditioning device installed on the car, which can refrigerate, heat, ventilate and purify the air in the cabin, provide a comfortable riding environment for passengers, reduce the fatigue intensity of the driver, and improve driving safety. Air conditioning units have become one of the indicators to measure whether a car is fully functional.

Generally, it includes a refrigeration device, a heating device and a ventilation device, which makes full use of the limited space inside the car, has a simple structure and is easy to operate, and is an internationally popular modern automobile air conditioning system.

Type of air conditioner. 1. According to the driving mode, it is divided into: independent (a special engine-driven compressor, with large refrigeration capacity and stable work, but high cost, large volume and weight, mostly used for large and medium-sized buses) and non-independent (air conditioning compressor is driven by the automobile engine, and the refrigeration performance is greatly affected by the engine work, and the stability is poor, and it is mostly used for small buses and cars).

2. According to the performance of air conditioning, it can be divided into: single-function type (the refrigeration, heating and ventilation systems are installed separately in the morning, operated separately, do not interfere with each other, and are mostly used in large buses and trucks) and integrated cooling and heating (refrigeration, heating, ventilation share blowers and air ducts, which are controlled on the same control board, and can be divided into a combination of cold and warm air working separately and a mixed temperature control type that can work at the same time. Cars are mostly used with mixed temperature control).

3. According to the control mode, it is divided into manual type (toggle the function key on the control board to control the temperature, wind speed and wind direction) and electro-pneumatic adjustment (using the vacuum control mechanism, when the air conditioning function key is selected, the temperature and air volume can be automatically controlled within the predetermined temperature).

4. According to the control mode, it is divided into: automatic adjustment (using the calculation and comparison circuit, through the sensor signal and pre-adjustment signal to control the adjustment mechanism to work, and automatically adjust the temperature and air volume) and the automatic adjustment of microcomputer control (with the branch leakage microcomputer as the control center to achieve all-round and multi-functional optimal control and adjustment of the air environment in the car).

Many friends may find that when we turn on the air conditioner of the car, it smells particularly bad. After smelling it for a long time, it will make you nauseous and dizzy. So where did this smell come from?

The main reason for the peculiar smell of the air conditioner is that the air conditioner has three major conditions for mold growth (i.e., warmth, humidity and nutrient source), therefore, after these stubborn impurities stay for a long time, the evaporation box of the vehicle will become a place for bacteria and mold to grow, therefore, every time the air conditioner is turned on, these bacteria and mold will enter the cabin with the air conditioning wind, and be inhaled into the human body, causing headache, fever, sudden sore throat, tonsil infection, asthma, flu symptoms, dermatitis and wounds that are difficult to heal and other adverse reactions. In severe cases, it will also make people feel uncomfortable such as dizziness and chest tightness. For example, when the air conditioning system is running, the water vapor in the air forms condensate on the surface of the condensation evaporator of the air conditioner, in which - - part of the water will remain in the evaporator and air conditioning pipeline after the air conditioner is turned off, and these moisture will combine with microorganisms and pollutants in the air to become a breeding ground for mold in the humid, warm and dark air conditioning system. Or because of the nicotine produced by the driver and passengers smoking in the car, and the smell of rubber, plastic and leather in the car, as well as the smoke, dust and exhaust fumes in the outside air enter the car and pollute the air conditioning system.

1. It is best to turn off the air conditioner in time a few minutes before arriving at the destination, and then turn on the natural air, so that the warm air in the air conditioner can be effectively buffered. That way, the next time you turn on the heater, you won't have an odor!

2. Another method is that we need to use the evaporator reasonably to remove the odor with high temperature. After the owner stops the car, you can adjust the temperature of the air conditioner in the car to a high temperature state, generally about 30 degrees Celsius, which can also fully keep the pipe fully dry, and can also blow away a lot of residual dirt in the pipe.

In this way, the odor caused by the air conditioner in the car can be quickly and effectively removed. This allows for clean air in the car. This method is also possible.

There is another kind of cleaning agent that is currently used to clean the air duct of air conditioning on the market, and the disinfectant cost of these air conditioning odor eliminates odor is dozens of yuan, there are hundreds of yuan, or even more, and the owner can purchase according to his own needs, and regularly and quantitatively carry out the car air conditioning"Preventive maintenance"。

Extended Information: Precautions for the use of car heaters.

1. It stands to reason that the car heater should not consume as much fuel as the cooling system, because we can rely on wearing more clothes to keep warm in cold weather. The weather is hot, but we can only rely on air conditioning to cool down. The first way to stop the fuel consumption of the heater is not to use the A C function.

2. Don't turn on the heating as soon as you get in the car.

When we first enter the car, we should not turn on the heater, but wait until the car starts for a few minutes, so that all the parts in the car start to coordinate and turn on the heater. Because low temperatures can inhibit the performance of the engine and other components, turning on the heater will undoubtedly increase the operating burden of the car. Fuel consumption will naturally become much higher.

3. Make good use of the air circulation system.

Cars have an air physical circulation system, which most car owners don't use. Internal circulation refers to the internal circulation of air, which can block the air from the outside. How to turn on the car heater so as not to increase fuel consumption in winter?

It turns out that nearly half of the people don't know how to turn on the heater. When the heater is turned on, the internal circulation system can be turned on to ensure that the heating is not lost, and the air in the car will heat up very quickly. Fuel consumption will also be reduced a lot.

Fourth, set a reasonable temperature.

Many cars now have an interior temperature display. When turning on the heater, don't turn the knob to the end, just turn the pointer to the middle. If the temperature is too high, the vehicle will heat the air all the time. After driving for a long time, fuel consumption will naturally increase.

Part of the heat of the warm air is exchanged from the exhaust gas, so the cold air has no smell, this problem is caused by the damage of the exhaust gas circulation pipe, which is very common, and it affects the health of the body by repairing it quickly.

Hello! Check whether the air conditioner filter is dirty and replace the air conditioner filter, I hope it can help you.

Hello, check the air conditioner filter and see if there is any foreign object.

Hello, it is recommended to replace the air conditioner filter and wash it.

First of all, the reasons for the peculiar smell after the air conditioner is turned on are:

1. After the air conditioner is used all year round, the indoor filter and copper sheet will squeeze a certain amount of dust, so that after accumulating to a certain amount, a certain odor will be generated, and the air conditioner will be blown into the air with the air conditioner turned on.

2. 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.

Knowing the reason, then how do we get rid of odors?

1. If the service life of the air conditioner is not very long, and there is dust in the panel and air outlet, the user only needs to wipe it by himself, and open the panel to remove the filter screen for clean water flushing, which can simply solve the problem of peculiar smell.

2. If the air conditioner is used for a long time and the user cannot simply clean it by himself, we need to contact the after-sales service to clean the air conditioner in time to make the air conditioner more healthy and fresh.

The main reason for the peculiar smell of the air conditioner is that the air conditioner has three major conditions for mold growth (i.e., warmth, humidity and nutrient source), therefore, after these stubborn impurities stay for a long time, the evaporation box of the vehicle will become a place for bacteria and mold to grow, therefore, every time the air conditioner is turned on, these bacteria and mold will enter the cabin with the air conditioning wind, and be inhaled into the human body, causing headache, fever, sudden sore throat, tonsil infection, asthma, flu symptoms, dermatitis and wounds that are difficult to heal and other adverse reactions. In severe cases, it will also make people feel uncomfortable such as dizziness and chest tightness. For example, when the air conditioning system is running, the water vapor in the air forms condensate on the surface of the condensation evaporator of the air conditioner, in which - - part of the water will remain in the evaporator and air conditioning pipeline after the air conditioner is turned off, and these moisture will combine with microorganisms and pollutants in the air to become a breeding ground for mold in the humid, warm and dark air conditioning system. Or because of the nicotine produced by the driver and passengers smoking in the car, and the smell of rubber, plastic and leather in the car, as well as the smoke, dust and exhaust fumes in the outside air enter the car and pollute the air conditioning system.