What s the matter with the car blowing the air conditioner and not cooling?

The lack of refrigerant leads to insufficient refrigeration dose in the air conditioning system pipeline, the pressure decreases, and the heat taken away becomes smaller, which will give you the feeling that the air conditioner only blows air and does not refrigerate. Generally speaking, there will be a slight leak in the air conditioning line or condenser, which is a normal phenomenon.

1 First: lack of refrigerant. If the refrigerant leaks, it will lead to poor refrigeration effect, so you can check the refrigerant and check whether there is a leak.

2 Second: The condenser is too dirty. The condenser is used to exchange heat, and if its surface is too dirty, the dirt of the attached dust will affect its refrigeration, and the natural air conditioner will not be cool.

So if the air conditioner is not cooling, there is a high chance that it is dirty. 3 Third: There is water in the pipeline.

When the refrigerant flows through the throttle hole of the expansion valve, it will drop because of its pressure and temperature, and the water on the coolant will freeze in the hole, resulting in the unsmooth flow of the refrigerant, which is also one of the reasons why the air conditioner does not refrigerate.

Specifically, it depends on what causes the air conditioner to not be cool, whether it is a lack of freon or the reason for the air conditioning pump.

1. If the air conditioner has no wind or the air volume is small, it is necessary to check whether the air conditioner filter is dirty, whether the blower can operate normally, and whether the air conditioner copy motor can be converted normally;

2. The freon of the air-conditioning system is missing, and it is necessary to check whether the system is leaking, and after the maintenance is confirmed, add freon to the standard range;

3. The condenser of the water tank is dirty, and the engine cooling system is faulty, resulting in high water temperature, such as the cooling fan not working, etc., resulting in poor heat dissipation of the water tank and the condenser;

4. The data of the air conditioning pressure sensor, evaporation box sensor and other sensors are wrong, resulting in the inability to adjust the air conditioning system correctly;

5. The adjustment solenoid valve of the air-conditioning compressor is damaged, the clutch of the air-conditioning compressor is damaged, and the internal of the air-conditioning compressor is damaged;

6. Caused by the failure of the air conditioning system line or control unit. When the car air conditioner is not refrigerated, you can choose a relatively professional maintenance organization for inspection and maintenance. For example, the 4S shop or brand repair shop of the model brand shall choose the maintenance organization according to its own actual situation.

Question: Is the air conditioner not cool due to high water temperature?

Answer: The reason why the water temperature is always high in the car is: 1. The thermostat is damaged, and the coolant is only circulated for a small time, and the heat is not dissipated through the water tank; 2. The cooling fan does not rotate, the temperature control switch is not turned on or the water temperature sensor fails; 3. The water pump is faulty, and the impeller slips or gets stuck, resulting in the belt breaking; 4. Insufficient cooling medium, insufficient coolant or water tank leakage; 5. The ignition timing is incorrect and the oil pressure is high, and there is a difference between the reading of the water temperature gauge pointer and the actual temperature; 6. The water tank is blocked, the external dirt is blocked, and the internal water channel is blocked to affect the circulation of coolant; 7. The cylinder is corroded, resulting in frequent water shortage in the water tank.

The air conditioner of the car is not cool, it should be a lack of buoyancy oxygen. After filling buoyancy oxygen, check if it is cooler.

1.Refrigerant leakage: If it is found that the car air conditioner is not cool, a big reason is that the refrigerant is insufficient or leakage, and the refrigerant of the air conditioner is generally not consumed, which may be due to an accident or dismantling the air conditioning pipeline and other accessories, which will lead to insufficient sealing, so if the refrigerant is found to be insufficient, you can first check whether the pipeline is leaking.

2.Condenser heat dissipation failure: After checking the air conditioner refrigerant, it is time to check the condenser.

The reasons why the car air conditioner is not cool: 1. Lack of refrigerant; 2. The condenser is too dirty; 3. There is water in the refrigeration system; 4. The compressor drive is chaotic, and the belt is aging or relaxed; 5. Damage to the air-conditioning compressor or expansion valve; 6. The air conditioner flap is damaged.

If the air conditioner of the car is out but not cool, the most common reason is that the refrigerant in the air conditioning system leaks, resulting in no refrigerant, and the air conditioner is not cooled. There are also possible reasons why the car air conditioner is out but not cool

1. There may be a problem with the refrigerant in the car air conditioning system;

2. If there is too much dirt in the refrigerant and refrigeration oil of the automobile air conditioner, the filter screen of the filter will be blocked. Resulting in no refrigeration when the air is started;

3. The compressor drive belt is too loose, resulting in the car air conditioner not being refrigerated.

What should I do if the air conditioner only blows the air and does not cool it.

1. If it is because of the lack of refrigerant, it should be supplemented, but it should be noted that if it is added from the low-pressure side, the static refrigerant bottle is poured, and if it is added from the high-pressure side, the engine is prohibited from starting;

2. Too much refrigerant will also lead to no refrigeration, if it is too much, you can slowly release some at the mold accompaniment such as the maintenance port on the low-voltage side of the air-conditioning system;

3. If the drive belt of the automobile air conditioning compressor is too loose or too tight, it can be solved by slightly tightening or loosening.

How to turn on the car air conditioner to save fuel:

1. Regularly check the air outlet of the air conditioner, if there is a foreign object blocking the air outlet, it will affect the air outlet, so it is necessary to increase the air conditioning gear in advance to better refrigerate, which will increase fuel consumption;

2. The adjustment of the wind direction and temperature of the air conditioner will affect the fuel consumption, so the wind direction should be adjusted. When the air conditioner is cooling, the air outlet should be upward, and the refrigeration speed is the fastest;

3. In the process of driving in the urban area, you can choose the alternate switch, the low-speed start and stop in the urban area is the most fuel-intensive, the engine heat dissipation is not good, and a lot of power support is required for starting and starting the air conditioner, so the fuel consumption is very large, you can consider closing the air conditioning window or using the method of alternate switching on and off the air conditioner;

4. Pay attention to the timing of turning on the air conditioner. When entering the car, ventilate the windows first, then turn on the external circulation, exhaust the hot air, and then replace it with the internal circulation. This does not add any load to the engine at idle, saves fuel and protects the engine.

Photo by Pacific Automobile Network Q&A).

The reasons why the car air conditioner is not cold are detailed in detail:

1. Lack of refrigerant.

Automobile air conditioners generally add refrigerant once every 2 or 3 years, even if the air conditioner is sealed very tightly, but it can not resist the refrigerant flying away, plus the air conditioning pipeline or condenser has a slight leakage.

2. The condenser is too dirty.

The purpose of cleaning the water tank and condenser is mainly to dissipate heat, and the spring poplar catkins are pasted on the condenser, which will cause the engine temperature to be too high or the air conditioning is poor.

3. The air-conditioning compressor, throttle valve or expansion valve is damaged.

Failure of expansion valves and throttle valves directly leads to poor air conditioning. These inspections are cumbersome and need to be repaired by a more professional repair shop.

4. The belt is too loose.

The belt is also a relatively neglected component, the general belt in the maintenance of the 4S shop will remind you to replace, in case of not changing in the use of the project will appear slippery, will cause belt breakage, belt abnormal noise, no assistance, poor air conditioning, etc. Therefore, it is also necessary to check the engine belt.

Summary. Hello. The air conditioner is not refrigerated, 1, according to the question you asked, if you feel that the refrigeration effect of the air conditioner is worse, this is generally a problem of refrigerant, missing or deteriorated, and the air conditioner filter is blocked, 2, it is recommended that you go to the repair shop to check, replace the refrigerant 200, the air conditioner filter 50, what is the matter if the car air conditioner is not cold?

Hello. The air conditioner is not refrigerated, 1, according to the question you raised, if you feel that the refrigeration effect of the air conditioner is worse, this is generally a problem with the refrigerant, missing or deteriorated, and the air conditioner filter is blocked, 2, it is recommended that you go to the repair shop to check, replace the refrigerant 200, the air conditioner filter element 50, the air conditioner is on and suddenly does not have wind What's going on.

Check to see if the freon is leaking or if the fan is not working.

There is a sound of air conditioning working, and the wind does not come out, so it will be fine again when you turn it off and stop for a while.

Fans not working will affect refrigeration.

The reasons why the air conditioner is not cool are as follows:

The first reason why the automobile air conditioner does not refrigerate: too much refrigerant causes insufficient refrigeration. Too much refrigerant is generally caused by overfilling the refrigerant during maintenance, because the proportion of refrigerant in the volume of the air conditioning system is required.

If the proportion is too large, it will affect its heat dissipation, that is, the more heat dissipation, the greater the cooling capacity; Conversely, if the heat dissipation is less, the cooling capacity will be small. Similarly, if too much cooling oil is added during maintenance, the heat dissipation of the refrigeration system will also decrease.

The second reason why the automobile air conditioner does not refrigerate: too little refrigerant causes insufficient refrigerant. Most of the causes of refrigerant deficiency are due to small leaks of refrigerant in the system.

If there is not enough refrigerant in the air conditioning system, the amount of refrigerant injected into the evaporator from the expansion valve must also be reduced, when the refrigerant evaporates in the evaporator. As a result, the amount of heat absorbed will decrease, and so will the cooling capacity.

The third reason why the automobile air conditioner does not refrigerate: the refrigerant and refrigeration oil contain too many impurities and micro-blockage, resulting in insufficient refrigeration capacity. If there is too much refrigerant and refrigeration oil viscera in the whole air-conditioning system, the filter screen of the filter will inevitably be blocked, resulting in a decrease in the refrigeration passing capacity, an increase in resistance, and a relative decrease in the refrigerant flowing to the expansion valve, resulting in insufficient refrigeration capacity.

The fourth reason why the automobile air conditioner is not refrigerated: there is water infiltration in the air conditioning and refrigeration system, resulting in insufficient refrigeration. One of the main tasks of the refrigeration system is to absorb the water in the refrigerant to prevent the refrigerant from decreasing the refrigeration capacity due to excessive moisture in the refrigerant.

But when the desiccant in the drying tank is in a state of moisture absorption saturation, 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 pressure and temperature factors, the water in the coolant will produce freezing phenomenon in the small holes, and cause the refrigerant to flow unsmoothly, the resistance increases, or can not flow at all.

The fifth reason why the car air conditioner is not cooling: there is air in the system. Once air enters the air conditioning system, the pressure of the refrigeration pipe will be too high, and the poor refrigerant circulation will also cause insufficient refrigeration.

Such failures are mainly caused by poor sealing of the refrigeration system, or incomplete evacuation during maintenance.

The sixth reason why the automobile air conditioner is not refrigerated: the compressor drive belt is too loose. The drive belt of the air-conditioning compressor is loose, and the compressor will slip when working, causing the transmission efficiency to decrease, so that the speed of the compressor decreases, and the delivery of compressed refrigerant decreases, so as to directly reduce the refrigeration capacity of the air-conditioning system.

The seventh reason why the automobile air conditioner does not refrigerate: the heat dissipation capacity of the condenser decreases. Due to the different working environment of the car, the surface of the condenser installed in front of the car engine will be covered with oil, mud or debris, so that its heat dissipation capacity will be reduced.

In addition, the failure of the cooling fan, such as a loose drive belt, a drop in fan speed or a high fan speed, can lead to a decrease in the heat dissipation capacity of the condenser.

Reasons and solutions for car air conditioners not to refrigerate:

1. Insufficient or too little refrigerant.

The common reason why the car air conditioner does not refrigerate is that the refrigerant is insufficient or too little, which is likely to be caused by a small amount of refrigerant leakage.

Solution: From the sight glass above the drying tank, it was observed that when the air conditioner was running normally, if there were continuous and slow bubbles in the sight glass, the surface refrigerant was insufficient. If there is a significant bubble flipping, it means that the refrigerant is seriously insufficient.

If there is not enough or too little refrigerant, the solution is to add refrigerant.

2. Too much refrigerant.

There is a requirement for the proportion of refrigerant to the volume in the air conditioning system. If the proportion is too large, it will affect its heat dissipation, and similarly, if too much cooling oil is added during maintenance, the heat dissipation of the refrigeration system will also decrease.

Solution: Observed from the sight glass above the drying tank. If you can't see a single bubble in the sight glass when the car air conditioner is running, and there are no bubbles after the compressor stops, it must be too much refrigerant.

If there is too much pressurized cooling oil, cloudy air bubbles can be seen in the sight glasses when the air conditioning system is running normally.

3. The air conditioner filter is seriously blocked.

If the air conditioner filter is seriously blocked, it will seriously affect the air volume of the air conditioner, and the air volume gear will be opened very high, but the air intake volume will be too small, resulting in insufficient cooling of the air conditioner.

The reason why the car air conditioner is not cool, the main aspects are as follows:

Quality and purity of fluorine。The quality and purity of fluorine plays a crucial role in the car air conditioner, and usually the poor quality fluorine will cause the air conditioner to run inefficiently, resulting in the car air conditioner is not cool.

Use of fluorine。Many car owners think that the more fluorine in the air conditioner, the better, but this is not the case. If the amount of fluorine is less, the pressure in the air conditioning pipe will not be enough, but if the amount is too large, the pressure will be too large.

It also makes the high section of the air conditioner unable to operate normally and refrigerate.

Condenser with water tank。The heat dissipation of the condenser and the water tank will also affect the use of the air conditioner, and if it is not cleaned for a long time, the condenser and the water tank will be covered by foreign body dust, resulting in the car air conditioner is not cool.

The quality of the expansion valve。The expansion valve is an important part of the refrigeration system, which is generally installed between the liquid reservoir and the evaporator.