What should I do if the car air conditioner is not cold? How to solve the problem that the car air c

Reason: 1. There is a fluorine leak, if it is, the expansion valve is replaced, and the interface of the high-pressure pipe for air leakage is re-tightened.

2. The air conditioning compressor has been used for a long time, and it is almost gone.

3. There is too much dust inside, go to the place where the car is repaired and open it to clean it up.

Maintenance method: 1: Comprehensively inspect the air conditioner.

When using the air conditioner for the first time in summer, you should first check the air conditioning system, such as checking whether the refrigerant and air conditioning filter are too dirty through the liquid storage tank, and whether the radiator has foreign objects.

2. Pay attention to the cleaning of the air conditioner.

Some novices always have to wait until the air conditioner is not working well before thinking of cleaning the air conditioner, which is not right. The air conditioner filter should be replaced regularly, because there is more dust in Beijing spring, and the catkins are flying, which will stick to the filter, which is easy to breed bacteria and make the air conditioner produce musty smell.

Three: After parking, do not turn off the air conditioner.

After arriving at the destination, the owner usually closes the air-conditioned car door and leaves directly. Unlike autumn and winter, the huge temperature difference between the inside and outside of the car during the hot summer months can cause mold to grow in the air conditioning system, which in turn can breed mold. Therefore, the owner should turn off the air conditioner a few minutes before arriving at the destination, turn on the natural air, make the temperature in the air conditioning duct rise, eliminate the temperature difference with the outside world, so as to keep the air conditioning system relatively dry and avoid mold reproduction.

Four: open the air volume regularly.

Some car owners rarely or never turn on the air conditioner to high air volume because they don't like the noise made when the air conditioner is turned on to high gear. However, the air conditioner will suck in a lot of dust when it is used, and it is a simple way to keep the air conditioner clean by turning on the wind energy regularly to blow out the floating dust on the inner surface of the air conditioner. In addition, it is necessary to sterilize, clean and remove odors with a special air duct cleaning solution.

The following points need to be checked when the air conditioner is not cooling:

1. Whether there is a refrigerant in the system, if not, it needs to be pressurized to check the leakage, and then add enough.

2. If there is refrigerant, check whether the compressor is working. If it is not working, you need to check whether there is any problem with the air conditioner pressure switch, temperature control switch and its wiring.

3. Check the heat dissipation of the air conditioner to see if the fan is working. Clean the condenser.

4. Replace the air conditioner filter, the filter element is too dirty, and it will also cause no refrigeration.

It may be that the blower is broken.

The reason why the cold air of the car is not too cold is due to the lack of freon, or the car can be divided, when it is not too cold, the pipe is blocked, the pipe is blocked, and the freon is not too cold when it is not enough, which is not too important, so there must be a professional person to pick it when you are there, so that the cold air of the car is hidden, and the car will naturally be cold.

Air conditioner, also known as air conditioner, refers to the equipment that uses artificial means to regulate and control the temperature, humidity, flow rate and other parameters of the ambient air in a building or structure.

Refrigerant leaks. (It is manifested that the internal and external machines are working, and the compressor is also working, but it is ineffective).2.

The compressor capacitor is damaged or defective, causing the compressor to not work. (The phenomenon is similar to the above, but the compressor does not rotate and overheats).3.

The resistance value of the temperature sensing head at room temperature changes, resulting in the air conditioner not working. (The phenomenon is the same as when the air conditioner stops after reaching the set temperature).

4.Bad remote control or bad air conditioner receiver. (Manifested as no reflection of the air conditioner when it is turned on, or it does not work from time to time).

Step 5Four-way valve (single chiller does not have this failure) or compressor high and low pressure string, air conditioning works but has no effect. (The phenomenon is the same as the first one).

Step 6The failure of the control panel of the internal or external unit of the air conditioner causes the air conditioner to not be refrigerated. (Manifested as no reflection when turned on or the air conditioner is messed up).

7.The power supply of the air conditioner is reversed. (This failure occurs in a small number of air conditioners, usually at the time of installation).

8.The internal or external fan is damaged (the capacitor is more broken), and the external fan is damaged by the high exhaust temperature or high voltage protection. If the fan of the internal unit is bad, the internal machine is frosty, the external unit has been working, and the internal machine will condense ).

1.Insufficient or too little refrigerant is often caused by a refrigerant leak.

2.Too much refrigerant will also cause the air conditioner not to refrigerate, because the proportion of refrigerant in the volume of the air conditioning system is required, if too much, it will affect its heat dissipation.

3.The drive belt is loose, and the compressor will slip when working, resulting in a decrease in transmission efficiency.

4.There is water infiltration in the refrigeration system, resulting in insufficient or no refrigeration.

Automobile air conditioning device is referred to as automobile air conditioner. It is used to adjust and control the temperature, humidity, air cleanliness and air flow in the car compartment in the best state, provide a comfortable riding environment for the occupants, and reduce the fatigue of the journey; Ventilation devices that create good working conditions for drivers and play an important role in ensuring safe driving.

In the history of the development of the world's cars, the family of car consumption is the beginning of the economic car, and in most developed countries, the economic car is the mainstream of the family car market. In today's world, energy-saving, environmentally friendly and compact economic cars are favored by consumers, and the development of economic car industry is encouraged and supported by the best countries in various countries.

The car air conditioner is not cool, it may be that there is something wrong with these places. Understand the car story of the car sister and the stupid black fat brother!

When driving in summer, the most distressing thing for everyone is that they are afraid of heat and the air conditioner is not cool.

The solution to the car air conditioner is not cool.

1. Whether there is a fault: as long as the electrical appliances will fail, we will first see if there is a fault prompt on the instrument, if there is a fault prompt, it means that there is a problem with the air conditioner.

2. Whether there is no refrigerant: If the car air conditioner is used for a long time, then the refrigerant will run out.

3. The air conditioning and refrigeration gear is adjusted too high: Sometimes, due to our negligence, it may lead to adjust and vibrate the gear too high when adjusting and vibrating the car air conditioner, so the air conditioning and refrigeration will be hot.

4. Replace the air conditioning filter: It is also possible that the air conditioning filter has not been changed for too long, or it has not been cleaned for too long, and a lot of dust on it blocks the air conditioning.

5. Check whether the battery is normal: Generally speaking, if the battery is depleted, it will also have an impact on the air conditioner and refrigeration, and we can check whether the battery power supply is normal.

If the above methods can't be solved, then you can only find a repair shop, let a professional repair person help check the cause, and then repair the fault.

The condenser of the car air conditioner does not dissipate heat well. An automotive condenser is a heat dissipation device that undertakes the task of dissipating heat from the entire system. It can dissipate a large amount of heat generated by the compressor during compression into the outside space.

The car cooling fan is suction-in and will cover the surface of the condenser over time. Therefore, if the owner wants to drive comfortably in the summer, he must remember to check whether there is any dust between the condenser and the water tank from time to time, and clean it with high-pressure air. The cooling fan is not working.

The cooling fan is behind the radiator. When the fan rotates, it draws air through the radiator, which enhances the heat dissipation effect of the radiator and speeds up the cooling rate of the coolant. The rotation of a car's cooling fan is affected by the water temperature sensor and the current inside the transformer.

If the car doesn't know that it's cold, then it's more routine to check if the cooling fan doesn't move.

Air conditioner refrigerant leakage. The air conditioning pipeline of the automobile is complex, and any joint with a gap or a small crack in the pipeline will cause refrigerant leakage. The condenser inside the air conditioner is too dirty and needs to be cleaned in time.

Many people are usually too lazy to clean the condenser, and the dust on it is getting thicker and thicker, resulting in poor heat dissipation and seriously affecting the cooling effect. It is not difficult to clean the condenser. When washing the car at home, prepare a bucket of water and scrub it carefully with a rag, mainly to remove the dust stains on it.

There is also a blockage of the air conditioning filter, resulting in insufficient refrigeration of the car air conditioner. At this time, we should clean the filter of the air conditioner. If the filter is badly damaged or has reached the end of its life, it will be replaced with a new one.

He complained that the refrigerant in the car was always missing, and asked me if there was a problem with the sealing of the air conditioner.

In fact, this really wronged the sealing device, and most of the refrigerant loss is due to leakage. For example, if your car air conditioner is broken, and it starts to break down again not long after adding refrigerant, then the owner needs to be cautious in this situation. If the refrigerant leak is due to the condenser, the owner needs to replace the condenser in time.

Then someone may ask how to know if the condenser is leaking. Fluorine oil plus fluorescent agent, check with special glasses, you can find the leakage. If the leakage is serious, you can check whether there is oil on the surface of the condenser through the China Net.

If there is, it is a condenser leak.

When the air from outside the car is sucked into the car, it passes through the air cleaner, so the air cleaner can filter the air. However, if the air conditioner is used for a long time, a lot of small insects and a lot of dust will be precipitated on the surface of the air filter, which will seriously reduce the efficiency of air entering the car, resulting in slow cooling effect or even no longer cooling. If the air conditioner is not refrigerated, the above inspection did not find any problems, and the fault is in**?

At this time, most car owners tend to ignore the air conditioning belt. Generally speaking, when it comes to maintaining your car, sometimes the staff at the 4S store will remind you to replace the belt in time. If you don't replace it in time after a long time, the belt will slip, and even make abnormal noise, break, lack of power, and poor air conditioning.

From this point of view, it is also necessary to check the air conditioning belt regularly.

It should be replaced, mainly because there may be some problems with the air conditioner, in which case it needs to be repaired or replaced with a new air conditioner, so as to ensure that the cooling can continue.

The reasons why the air conditioner in the car is not cold are as follows: 1. The refrigerant is insufficient or too little. Insufficient or too little refrigerant is likely to be a small leak of refrigerant in the refrigeration system.

2. Too much refrigerant may also cause the air conditioner to not refrigerate. Due to the requirement of the proportion of refrigerant in the volume in the air conditioning system. If the proportion is too large, it will affect its heat dissipation; Similarly, if too much cooling engine oil is added during repairs, the heat dissipation of the refrigeration system may be reduced.

3. The drive belt of the automobile air conditioning compressor is relaxed, and the compressor will slip when working, resulting in a decrease in the transmission rate, a decrease in the speed of the compressor, and a decrease in the delivery of compressed refrigerant, which in turn affects the non-refrigeration of the automobile air conditioner. If the compressor drive belt of the car air conditioner is too loose, it should be tightened at this time, and if it is flipped by hand, it means that the drive belt is too tight and should be slightly loosened. 4. In the whole air-conditioning system of the automobile air conditioner, the refrigerant and the engine oil of the refrigerator are too much, which may also affect the blockage of the filter screen of the automobile air conditioner, and affect the non-refrigeration of the automobile air conditioner, its resistance increases, and the refrigerant flowing to the expansion valve may also be reduced, so it affects the lack of refrigeration capacity.

Question: The filter has been replaced, the refrigerant has been replaced.

If you don't ask a question, it shouldn't be bad!

Q: How much does it cost to replace a compressor?

Change the filter. Because the air conditioner is not cool, it may be that the filter is too dirty and blocking the coolness, so the filter should be replaced.

We can go to the 4S shop to add some fluoride to our air conditioner, so that the air conditioner will be colder, and the cooling effect of the air conditioner will be better.

The solution to the car air conditioner is not cool:

1. The lack of refrigerant in the air conditioner leads to poor refrigeration effect or inability to refrigerate normally, and the owner needs to supplement the refrigerant for the vehicle. 2. The compressor of the vehicle is faulty, unable to work normally, and cannot produce cold air, because the main function of the compressor is refrigeration, and the owner needs to repair the compressor in time. 3. There is no maintenance of the air conditioner, resulting in the air conditioning filter and condenser are too dirty, and there is a blockage, which affects the refrigeration effect of the air conditioner, and the owner needs to clean the air conditioner in time and replace the new air conditioning filter.

4. There is a problem with the circuit of the vehicle, which cannot supply power to the air conditioning system, and the air conditioner cannot work normally, so the owner needs to check and repair the vehicle circuit in time. 5. The owner did not press the AC refrigeration switch, or adjusted the air volume too small, and did not set the function of the air conditioner, so that the air conditioner was not cool.

There are different solutions for different reasons why car air conditioners are not cool:

1. Lack of refrigerant: The so-called refrigerant is freon, also known as refrigerant, and the refrigerant model commonly used in automobiles on the market is generally R-134A. If the vehicle lacks refrigerant, the refrigeration effect of the whole system will decline, and even the failure phenomenon of air conditioning is not cool.

The solution is to replenish the refrigerant, or refill the refrigerant. However, before filling the refrigerant, it is necessary to check whether the air conditioning system has leakage, and if it is not checked, it will inevitably lead to the loss of refrigerant again.

2. The air conditioning pressure sensor is out of alignment: This sensor is mainly used to detect the pressure in the air conditioning pipeline, prevent the refrigeration system from working under the extreme refrigerant pipeline pressure, and help control the speed of the engine cooling fan. If the sensor is damaged and inaccurate, it can falsely alarm the signal that the pressure is too high or too low, and the compressor will not work properly.

The solution is to replace the air conditioner pressure sensor. However, before replacing the sensor, it is also necessary to detect whether the wiring harness of the sensor is faulty, because the virtual connection and open circuit of the wiring harness will also lead to misjudgment and misalignment of the sensor.

3. Dirty condenser: If the condenser is dirty, it will inevitably lead to a decrease in the heat dissipation of the refrigerant, resulting in the fault phenomenon that the air conditioner is not cool, and the solution is to clean up the dust, catkins, flying insects and other dirt on the condenser.

The best way is to remove the condenser for cleaning, followed by using a water gun for car washing, but you need to adjust the water pressure a little lower, otherwise it is easy to flush the condenser and cause refrigerant leakage.

Precautions for the use of automobile air conditioners

1. Do not turn on the heating air conditioner immediately when the car is warmed up in the morning, and wait until the water temperature of the engine water tank rises before turning on the air conditioner;

2. The temperature of the air conditioner should not be set too high, the temperature that is overheated for a long time will cause sleepiness and affect driving, and do not let the warm air blow directly on the face;

3. If the window starts to fog up after the heater is turned on, you need to increase the speed of the heater and blow it for a while, so that the fog will disappear and will not appear repeatedly;

4. When driving for a long time, you need to change the air every once in a while, the air circulation in the confined space is not smooth, and it will also cause the people in the car to breathe poorly for a long time;

5. Turn off the air conditioner before parking and turn on the external circulation of natural air, which can clean the air duct of the air conditioning system and prevent the breeding of bacteria.