The car was driving halfway and suddenly smelled of plastic from the air conditioning outlet

1. Open the car cover to dry. Nowadays, there are generally nano-silver photocatalysts in air conditioners, which can decompose organic molecules under sunlight, so they can deodorize.

2. If it is dirty, change the filter element and then clean the air duct.

3. External circulation, it may be that the smell of the outside world enters the car, and it can be changed to internal circulation.

If you drive the outside of the car, it may be that the smell of the outside world enters the car, and if you turn on the inside of the car, then remove the air conditioning filter and clean or replace it, and you can eliminate the odor.

It is also possible that the clutch pads smell burning, and the brake pads will also have a strong plastic smell if they are overheated.

It could be that someone around burns plastic, and you open the window to smell the air outside, and if it doesn't smell anymore, that's why I say it.

It is not the smell of burning plastic.

Reason analysis: The refrigeration principle of air conditioning is to absorb heat through the rapid evaporation of refrigerant, so that the temperature of the air flowing through it drops rapidly. Since the temperature of the evaporator is low and the air temperature is high, the particles of water molecules in the air will condense into water droplets on the evaporator, while dust or clothing in the air.

Substances such as small fluff on the seat tend to adhere to the surface of the condenser, which can lead to mold and bacteria.

Solution: Long-term inhalation of such air by the human body will affect the health of the driver and passengers, so the air conditioning system should regularly replace the air conditioning filter and clean the air channel.

After the cold air of the car air conditioner is turned off, it will blow out a pungent smell, which is that the air conditioning filter of the vehicle is too dirty, and the rotten substances inside will emit a peculiar smell when the temperature is different, and the air conditioning filter can be replaced, and the specific operation steps are as follows:

1. Open the co-pilot's glove box.

2. Remove the co-pilot's glove box.

3. Pull up the cover plate of the filter element.

4. Remove the cover.

5. Replace the internal filter.

There are several reasons for this:

1. Because the air conditioner filter has not been cleaned for a long timeIn addition, the humid air in the rainy season causes the air conditioner filter to be humid and warm, resulting in mold growth and musty smell;

2. The outside air flows through the air conditioning system pipesIt must bring moisture and dust, most of the moisture and dust will be discharged from the car through the air conditioning drainage, but there will also be a small amount of residual moisture in the air conditioning system pipes combined with the dust in the air, if it is not cleaned for a long time, it will also produce mildew and produce sour and rotten odors.

There are the following solutions to the odor of air conditioners:

1. Clean the air conditioning system or replace the air filter element frequently to reduce the growth of mold;

2. Master the correct method of turning on and off the air conditioner, it is generally best to turn off the air conditioner 5 minutes before parking, and then turn on the natural wind, so that the temperature in the car can be picked up as soon as possible, and the water droplets condensed will not be condensed in the air conditioning pipe due to the temperature difference after parking, so that the air conditioning pipe can be dried and block the breeding of mold and fungus.

3. Use natural "air fresheners", you can put some pineapples, lemons, apples and other fruits in the car, which can achieve the effect of removing odors.

4. Frequently use the auto button of the air conditioning panel to make the temperature in the car relatively stable, the human body will feel comfortable, and the air quality in the car can be maintained at the same time.

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.

"1. Check the air outlet duct of the air conditioner. The best way is to choose an open, sunny environment, open the door, turn on the natural wind, turn on the external circulation to the maximum (do not turn on the air conditioner), or turn on the heater for 5-6 minutes to blow the dust out. 2. Check the air conditioner filter.

The air conditioner filter is generally replaced once a year, but it also depends on the situation, and it is possible to change it once every three months when the air conditioner is used frequently or the external environment is very poor. The air conditioner filter is dirty."

Causes of odors:

1. The air conditioner is often turned on at the coldest temperature;

2. The air volume is always the smallest;

3. Always use internal circulation.

Often, cars with the above three at the same time or two of them have the highest probability of air conditioning odor.

In this way, there is condensate in the condenser pipe all the time, which is easy to mold.

Methods of prevention and control:

1. Try not to turn on the air conditioner as far as possible, and it is not good for the body.

2. Turn on the air conditioner, and the air volume should be placed above the middle range to speed up the flow of air around the condenser tube.

3. It must be based on external circulation, and it does not cost any oil, because the automobile air conditioning compressor is always on.

What to do after a sour taste:

1. Turn on the air conditioner (not just turn on the fan, see the following precautions);

2. The temperature is the highest;

3. The air volume is adjusted to the maximum;

4. Hold for 5 minutes and 10 minutes;

5. Just return to normal use, and pay attention to the use of air conditioners according to the prevention and control methods mentioned above.

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.

For new cars, windows should be opened frequently for ventilation, because new car evaporators and other chemicals will be used during assembly, which will emit odors from the air duct and pollute the air in the car. Workaround:

1. Put some bamboo charcoal in the car.

2. Place apples or lemons.

3. Install a car electronic aromatherapy.

If it is the cause of the odor of the old car. Workaround:

1. Clean the air-conditioning system.

2. Clean or replace the air filter.

3. After cleaning, place bamboo charcoal, lemon, electronic aromatherapy, etc. according to the method of the new car to ensure that the air in the car is fresh and pleasant.

Suggestion: In the process of using the air conditioner, it is necessary to prevent the production of condensation, and the air conditioner will blow moldy odor after cleaning, because the condensate in the air conditioning pipe forms a dark and humid environment, which is very suitable for the reproduction of mold. The way to prevent it is to turn off the air conditioner a few minutes before parking and turn on the natural air later, so that the temperature in the air conditioning duct rises before stopping, reducing the temperature difference with the outside world and keeping the air conditioning system relatively dry.

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.

There are generally two reasons why car air conditioners smoke and smell burnt:

1. It may be that the air inlet of the air conditioner is blocked, resulting in the hot air inside not being blown out, and the heat cannot be dissipated, and the plastic parts are scorched. The elimination method is to check whether the air inlet is unblocked, and then test whether the air outlet is normal with your hands, and listen to whether there is any abnormal sound in the air conditioner.

2. Caused by the aging of automobile wiring, the circuit is scorched by heat when the electric heating is made, or the plastic parts are displaced internally, resulting in heating. If this is the case, it is necessary to disassemble the car air conditioner for inspection and repair.

Maybe the plastic woven bag is wrapped around the exhaust pipe under the car, and the exhaust pipe is very hot and melts, but every time the car runs for a long time, there is a mushy smell, and then the plastic residue on the exhaust pipe is hung up. You can go to a car repair shop to see if it is a similar problem.

Maintenance methods for car air conditioners

The air outlet of the air conditioner is the easiest problem to ignore, and it is also the dirtiest place that needs to be cleaned up.

After we use the air conditioner in the car for a period of time, because of the adsorption of static electricity and the repeated recycling of air, a lot of dust in the air is blocked in the air outlet of the air conditioner, and long-term deep cleaning will only breed a lot of bacteria and viruses, and even affect the cooling effect of the air conditioner in summer, increasing fuel consumption!

The cause and treatment method of the burning smell at the air outlet of the air conditioner:

1. If the smell is not the smell of burnt plastic, it may be that when using electric auxiliary heating, the dust on the heating tube is baked, and the smell will slowly disappear after several uses. If the smell is unbearable, it is recommended to turn off the electric auxiliary heat of the air conditioner, or ask the air conditioner maintenance personnel to disassemble the air conditioner to clean the dust on and next to the heating pipe. The smell will not be there anymore.

2. If you smell plastic, it may be that the air outlet of the air conditioner is blocked, resulting in the hot air in the air conditioner not coming out. If the heat cannot be dissipated, it will cause the plastic cup inside the air conditioner to burn, first check whether the air conditioner outlet is blocked, test whether the wind at the air outlet is very strong with your hands, if it is very small, it is recommended to open the air conditioner for inspection, and clean up the foreign objects that fall out of the air outlet.

3. It may also be that the circuit of the air conditioner is aging or the heating wire is abnormal, resulting in the temperature generated by the heating wire being too high, and this problem needs to be disassembled for inspection.

After the cold air of the car air conditioner is turned off, it will blow out a pungent smell, which is that the air conditioning filter of the vehicle is too dirty, and the rotten substances inside will emit a peculiar smell when the temperature is different, and the air conditioning filter can be replaced, and the specific operation steps are as follows:

1. Open the co-pilot's glove box.

2. Remove the co-pilot's glove box.

3. Pull up the cover plate of the filter element.

4. Remove the cover.

5. Replace the internal filter.

Precautions for operation:

1. Do not turn on the air conditioning system during operation.

2. Do not drop foreign objects in the air conditioner.

The reason for the musty smell is that the water vapor and mold accumulate on the indoor heat exchanger of the air conditioner, which cannot completely evaporate to form mildew, and the musty smell will appear for a period of time after a long time.

Here's how to deal with it simply:

1.Change the current way of use: the heat exchanger is moldy and has a lot to do with use, because it is normal for water vapor to condense during refrigeration, but after the shutdown, we must pay attention to ventilation to keep the air conditioner heat dissipation smooth, and it is best not to cover the air conditioner, and treat the aging appearance of the air conditioner.

2.It is recommended to remove the air conditioner filter and gently brush the inner fins with a soft-bristled brush with a detergent to remove mold on the surface.

3.Buy some special anti-mold air conditioner cleaning liquid for treatment4Frequently run the air conditioner's ventilation pattern for a period of time to keep the air conditioner's heat exchanger dry <>