What are the general faults of the car air conditioner if it is not refrigerated?

1.The refrigerant is insufficient, and the car air conditioner usually adds refrigerant once every 2 to 3 years, and the loss of refrigerant is mainly leakage. If your car is not cold after turning on the air conditioner, and it is not cold after adding refrigerant for a while, then you should pay attention.

2.The flip plate is damaged, the flip motor is damaged. Such failures are rare and not unheard of.

If there's a problem with the flap motor, it's troublesome. The flap motor is generally located at the lower part of the instrument panel and belongs to the main switch of the air conditioner. If it's broken, the switch is broken.

Even if the air conditioner can cool down the cold air and only drill through the gaps, the effect is not very obvious.

3.The condenser is too dirty. The main purpose of cleaning the tank and condenser is to dissipate heat. When cleaning, be sure to blow with a spray gun first, and then clean with a water gun. Otherwise, it will be counterproductive, not only empty but not cool, but also increase fuel consumption.

4.Damage to an empty compressor, throttle valve, or expansion valve. The empty compressor is unlikely to break, so we don't have to worry too much. As for the failure of expansion valves and throttle valves, the air conditioning is not directly cooled.

5.The belt is too loose. Under normal circumstances, the 4S shop will remind you to replace the belt when repairing. If the belt is not replaced, it will slip during use, resulting in belt breakage, abnormal belt noise, no power supply, poor air adjustment, etc.

6.There is water in the pipes, and there are drying tanks in the air refrigeration system of the car. Its main task is to absorb the moisture in the refrigerant and prevent the refrigeration capacity from decreasing due to excessive moisture in the refrigerant. When the desiccant in the drying tank is saturated, the water can no longer be filtered out.

When the refrigerant passes through the throttle hole of the expansion valve, due to the decrease of its pressure and temperature factors, the water in the coolant will freeze in the holes, and cause the refrigerant to flow unsmoothly, the resistance increases, or it cannot flow at all, resulting in the air conditioner can not be refrigerated.

Lack of refrigerant. The compressor is damaged.

The condenser does not dissipate heat well.

The evaporation tank is clogged.

<> "Air conditioning is indispensable in the hot summer, whether at home, in the office or in the car, air conditioning is an essential tool for spending summer. After a long time of non-use, the car air conditioner will not be refrigerated, and today we will learn about several common situations where the car air conditioner is not refrigerated.

1. The condenser is too dirty.

The purpose of the water tank and condenser is mainly to dissipate heat, and dust and debris covering the condenser will cause the engine temperature chamber to return too high or the air conditioning is poor. When cleaning, you must pay attention to blowing clean with a blow gun first, otherwise it will be counterproductive, not only the bad fuel consumption of the air conditioner will also increase.

2. There is a shortage of hungry media before the cold army.

The refrigerant is what we usually call snow and freon. The most direct function is refrigeration, so the general air conditioner does not refrigerate first check whether the refrigerant is sufficient, supplement the refrigerant for a period of time, if it is not refrigerated again, it is necessary to check whether there is a problem with the sealing pipe.

3. The belt of the air conditioner compressor is too loose.

When the belt that drives the compressor of the automobile air conditioner is loose, the compressor will slip when it is tasked, which will provoke the transmission to obey the landing, so that the speed of the compressor will fall, and the delivery of the compression refrigerant will fall, so as to cause the automobile air conditioner to not refrigerate. The belt may cause slippage and cracking after a long time, so if the wear is serious, the air conditioner compressor belt should be replaced in time.

4. Cabin air filter.

After a long time, a large amount of debris will accumulate on the air conditioning filter, causing blockage, and the pipe will not be smooth, even if you turn on the maximum wind speed, the air volume transmitted to the car will shrink, and the refrigeration effect will plummet. It is recommended to replace the cabin air filter every 20,000 km. (Related:.)

How do I change my cabin air filter? ）

5. Compressor failure.

The compressor can be said to be the heart of the air conditioner, and the working principle of the compressor is to compress and transfer the refrigerant. The general life span is about 10 years, the structure of the compressor is more complex, if the compressor is broken, it generally cannot be repaired, and it is replaced.

Summary: The above are the common reasons why the air conditioner is not cooled, and the air conditioner is still very important for the people in the car in summer. Therefore, as a car owner, you still have to have a good habit of turning on and off the air conditioner and master the basic knowledge of car air conditioning.

1.Insufficient refrigerant: The air conditioning of the car is usually added once every 2 to 3 years, and the loss of refrigerant is mainly leakage.

If your car has a defect in the air adjustment and it will start to be defective after a period of refrigerant refrigeration, then you need to pay attention. 2.Flap plate damage:

Damage to the flap motor is rare and not unheard of. If there's a problem with the flap motor, it's troublesome. The flap motor is generally located at the lower part of the instrument panel and belongs to the main switch of the air conditioner.

If it's broken, the switch is broken. Even if the air conditioner can cool down, the cold air can only come out of the cracks, and it is still drinking to quench your thirst. 3.

The condenser is too dirty: in summer, it is often found that the car is not cooled, there is no problem with the air detection system, and the high and low pressure is basically normal. When going to a 4S shop to repair a car, it is often recommended that the owner do an activity of cleaning the water tank.

The main purpose of cleaning the tank and condenser is to dissipate heat. In spring, poplar catkins are pasted on the condenser, which will lead to the phenomenon of excessive engine temperature or improper air conditioning. Therefore, every time after spring, car owners must check whether there is a lot of hair on the water tank.

When cleaning, you must pay attention to blowing it clean with a spray gun first, otherwise cleaning with a water gun will be counterproductive. Not only does the difference in empty fuel consumption increase. 4.

Damage to the empty compressor, throttle valve, or expansion valve: The empty compressor is unlikely to be damaged, so we don't have to worry too much about it. As for the poor adjustment caused by the failure of the expansion valve and throttle valve, these inspections are cumbersome and need to be repaired by a professional repair shop.

5.Belt aging is too loose: belt is also a relatively neglected component, generally the belt in the maintenance of the 4S shop will remind you to replace, in case there is no change in the use of the project will appear slippage, will cause belt breakage, belt noise, no assistance, poor air conditioning, etc., so it is also very necessary to check the engine belt.

When summer is coming, all car buyers expect to have a comfortable environment when driving, but when you want to blow the air conditioner in summer, it is very likely that the air conditioner is not cool, or even there is no air conditioning at all. Such problems are most likely caused by refrigerant leakage or poor refrigerant quality, damaged or defective compressor capacitance.

The loss of refrigerant is mostly leakage-oriented, if the car is not good in air conditioning, and gradually deteriorates after a period of time after filling the refrigerant, this situation generally occurs, most of them are to prick the rhythm of blood, if the condenser leaks must be dismantled and replaced with the condenser, the method of checking the leakage is also very difficult, generally it is true that fluorine oil is added to the luminescent agent with special myopia glasses query, you can find out where the leakage is. There is also a relatively simple method applicable to the wet condition of organic oil on the surface of the condenser through the air intake grille when the leakage is more serious, and the condenser is generally leaking when there is such a situation.

In summer, it is often found that the air conditioning is not good, to check that there is no problem with the air conditioning system software, the high and low pressure are basically normal, and when you go to the car 4S shop to repair the car, it is usually highly recommended that the car buyer do a theme activity of cleaning the car water tank. Clean the water storage tank, the meaning of the condenser is mainly heat discharge, the spring catkins are pasted on the condenser, which will lead to high temperature of the car engine or poor air conditioning, so every time the spring has passed, the riders must check whether the water storage tank is pasted with a lot of small hair. When cleaning, you must pay attention to the first blow gun to clean up, in the tap water gun to clean or the gain outweighs the loss, not only the air conditioner is not good, but also the fuel consumption will increase.

There is a saying in the circle about air conditioning and refrigeration compressors that "low pressure is high, and low pressure has to be replaced by refrigeration compressors", and the probability of damage to air conditioning and refrigeration compressors is not large. For air conditioners, expansion valves and one-way throttle valves are common, and the failure immediately causes the air conditioner to be suboptimal. This kind of inspection is more complicated, and you must find a more professional auto repair shop for maintenance.

Belt is a bit neglected component, generally belt in the maintenance of the car 4S shop will prompt the buyer to replace, in case of not replaced in the application of the project will occur deviation, will lead to belt rupture, belt abnormal sound, no boost, poor air conditioning, etc. Therefore, it is also necessary to inspect the engine belt of the car.

It may be because there is a problem with the filter chip of the car, or it may be because there is a problem with the air conditioner of the car, so it will cause such an impact, and such a process will also cause serious damage to the car itself.

It may be because there is a problem with the filter chip of the car, or there are a lot of problems in the body, and the damage is relatively high, and it is also harmful to the car itself.

It may be that a lot of dust has been accumulated, or the heat dissipation effect is not good, and the compressor is not working, which will lead to the situation that the car air conditioner is not cooled.

The air conditioner is not refrigerated, generally because the air conditioner is missing, or the radiator does not dissipate heat well, and the cooling system parts are faulty.

There are many factors that lead to the non-refrigeration of automobile air conditioners, and the following are the possible causes and solutions for non-refrigeration:1Insufficient or too little refrigerant, the common reason why a car cannot be cooled when it is empty is that the refrigerant is insufficient or too little, which is likely to be caused by a slight leakage of refrigerant; Workaround:

If there is not enough or too little refrigerant, the solution is to add refrigerant. If the refrigerant is added from the low pressure side, it is forbidden to pour the refrigerant bottle. If joining from the high-pressure side, it is forbidden to start the engine; 2.

Too much refrigerant because the air requirement regulates the proportion of refrigerant in the system volume. If the proportion is too large, it will affect its heat dissipation. Similarly, if too much cooling oil is added during maintenance, the heat dissipation of the refrigeration system will also be reduced; Workaround:

If there is too much refrigerant, it can be released slowly at the maintenance port on the low-pressure side of the air conditioning system; 3.The empty compressor drive belt of the car is loose, solution: If the empty compressor drive belt of the car is too loose, it should be tightened at this time.

If you can't turn it over by hand, it means that the transmission belt is too tight and should be loosened. Of course, if the fastening is ineffective or the transmission belt is damaged due to cracks and aging, it is necessary to replace the transmission belt with a new one; 4.Substandard refrigerants and refrigeration oils.

Solution: Select a qualified refrigerant for maintenance. Qualified refrigerants play a key role in the regulation of the air of the rented car; 5.

Water infiltrates the refrigeration system. Solution: The desiccant or drying tank made by the air conditioner in the car should be replaced.

At the same time, the system should be emptied again and a new refrigerant should be injected again. If the above reasons are ruled out, the air conditioner cannot be refrigerated, and there may be other faults, it is recommended to go to a professional repair shop for repair.