The car will not be refrigerated after parking in place for a while, and what is the reason for the

The car will not be refrigerated after parking in place for a while, and what is the reason for the refrigeration after the speed is fast?

This is mainly car air conditioningCondenserIt is covered by lint or too much dust, resulting in poor heat dissipation, so the air conditioner is not too cold when the vehicle is parked, and the air conditioner is cold when it is turned on.

The composition of the automotive air conditioning system is mainly composed of a condenser, a compressor, a blower and an evaporation tank. Normally, the better the heat dissipation of the air conditioner, the cooler it will be. And the most direct factor affecting the refrigeration effect of air conditioning is the condenser and evaporation box, the most years, before entering the summer, there will always be 10 days of floating wool, at this time, the vehicle in the process of driving, the water tank gap will drill a lot of wool, and then attached to the water tank and the condenser behind the water tank, when the water tank is attached to the wool will lead to high temperature of the vehicle, the condenser is attached will lead to the phenomenon of air conditioning not refrigeration.

As for the function of the evaporation tank, it is a low-pressure refrigerant that expands out.

Evaporation absorbs the heat of the air inside the car, so as to achieve the effect of heat dissipation. In general, air conditioning filters are installed at the blower locations of vehicles, only pickup trucks.

This type is not installed, so the evaporation tank of the pickup truck is always easy to get dirty, resulting in poor refrigeration effect.

How to maintain the refrigeration effect of car air conditioner 1, after the vehicle starts, it is best to buy a water tank protective net, this thing is about thirty or forty yuan, which can filter some large dust and lint very effectively, as long as it is blown with an air pump from time to time, it is basically very clean.

2. After the lint is finished, we must replace the air conditioning filter of the car in time, when we turn on the external circulation of the air conditioner, we must inhale a large amount of wool and dust, at this time the air conditioning filter will be very dirty, and if it is not replaced, it will greatly affect the refrigeration effect.

3. If the effect of the air pump is still not good after blowing, it needs to be thoroughly cleaned at this time, and the bumper needs to be removed.

The water tank and condenser are cleaned separately, and the water gun outlet should be adjusted into a mist shape when cleaning, otherwise it is easy to turn the heat sink.

Flush off crookedly, affecting heat dissipation.

4. For models without air conditioning filters, be sure to clean the evaporation box thoroughly, and you will find that the air conditioner can be so cold that it makes you numb.

5. For pickup trucks such models, poor heat dissipation has always been a common problem, we will normally install an electronic fan in front of the water tank, so that the wind blows from the front of the car to the inside, this method can solve the situation that the air conditioning is not too cold when most pickup trucks are parked.

Time-tested. <>

Summarizing that the car air conditioner is not cold when parking, and it is cold when running, mainly related to the condenser and evaporation box, at this time, clean the condenser and evaporation box in time, and replace the air conditioning filter, the refrigeration effect of the air conditioner will definitely be greatly improved.

The car air conditioner is not cold when parking, but it is cold when running, mainly related to the condenser and evaporation box, at this time, clean the condenser and evaporation box in time, and replace the air conditioning filter, the refrigeration effect of the air conditioner will definitely be greatly improved. Cold.

If the car is in situ, the power of air conditioning and refrigeration is not enough, so it may not be refrigerated, and the car will be much larger when you drive it, so that there is enough power to drive the air conditioning compressor to work.

This is most likely due to the fact that there is too much dust in the condenser, which does not dissipate heat very well.

There are two possibilities:

It may be that the condenser is covered with dust and causes poor heat dissipation!

It may be that the cooling fan is faulty, resulting in insufficient heat dissipation when static!

Possible causes:

1. The cooling fan is broken. When the car is stationary, the radiator lacks the air flow in the moving heat dissipation, resulting in the high pressure of the refrigerant system is too high and the temperature is too high to jump out automatically, and the temperature drops and starts automatically, so it will be disconnected and refrigerated for a while.

2. Others may be the problem of the compressor itself, which needs to be checked by professionals.

If you have any other questions, please feel free to ask them.

Cause analysis: voltage problem, refrigerant problem.

Suggestions: 1. Voltage problem.

1. If there is a problem with the power supply of the air conditioner, you only need to plug in the power supply of the air conditioner again to ensure that the air conditioner can be energized normally.

2. Start with stabilizing the air conditioning voltage.

Second, the problem of refrigerants.

1. The refrigerant of the air conditioner is not enough, as long as enough refrigerant is added for the air conditioner to cool down, the problem of air conditioning not being refrigerated can be solved.

2. If the refrigerant of the air conditioner is not enough because of the leakage of refrigerant, we need to seal the cavity of the leakage part of the air conditioner by welding and repairing, and then add enough refrigerant to solve this problem.

Look at your set temperature, if the set temperature of the air conditioner is high, or the set temperature is reached, the computer will control the electromagnetic clutch of the air conditioner to release and stop the air conditioner, if the temperature in the car is high, the electromagnetic clutch of the air conditioner will automatically engage under the control of the computer and start working.

If the indoor unit filter is dirty, open the panel, take out the filter, if there is dust on it, there is a waste toothbrush to wash it in the water. Put it back on. If it still doesn't work, check if the compressor is working.

Generally, there are several situations that will cause the compressor not to work: the external temperature is too high or the heat dissipation is not good, and the compressor is overheated protection. In this case, it is necessary to consider relocation.

The evaporator of the external unit is too dirty, and the compressor does not work. Cleaning But it's best to have a professional do it. Whether the refrigerant is less or not, this should be checked by professionals.

This fault situation is most common during the peak period of air conditioner use, which is generally caused by the low mains voltage; When the air conditioner is running below 190 volts, the overload protector in the air conditioning compressor is too low due to the low voltage, which causes the compressor to overcurrent and overheat the protector to work, and the compressor can only work after the overcurrent and overheat protector is cooled and restored, so it is necessary to check whether the voltage after the compressor is started is lower than 190 volts, if the voltage is too low, you can increase the wire diameter or purchase a voltage regulator with more than 2 times the power of the air conditioner, so that the working voltage of the air conditioning compressor is more than 190 volts, This way the air conditioner will work properly.

In the car, people will now install air conditioning, so that they can be more comfortable when driving, but there will be a variety of problems when using car air conditioning, there are many reasons why car air conditioning will be refrigerated and will not be refrigerated, people are feeling special doubts, and what to do if the car air conditioning is not refrigerated should also be mastered.

First, the lack of freon, to check to see if there is a leak, you can drop some water at the pipe joint of the car, bubbles will generally appear in the leakage, find the leak to repair the place, and then go to the car repair shop or maintenance shop to add freon.

Second, the filter screen is too dirty, you can try to find the bypass valve on the filter element base of the filter screen, when the pressure difference between the two sides of the valve reaches a certain value, it can be opened, generally the oil flows into the main oil pipeline through this pipeline, and other related parts are lubricated with special lubricants for automobiles, so that it is almost the same.

3. If the antifreeze is not enough, you can ask the people nearby to see if there is a 4S shop or car repair shop, and you can only find a professional car repairer. If the doors and windows of the car are not closed properly, carefully check whether the doors and windows of your car are closed or not, and if they are closed, they are other problems.

Fourth, the air conditioning core is too old, if the air conditioning core of your car has used a lot of time, it may be a problem with the air conditioning core, you will install it to buy an air conditioning core and install it yourself, not only to find a car maintenance shop and car repair shop. The pressure of the refrigerant is too large, so check the pressure value of the refrigerant with a pressure gauge and clean the condenser by the way.

What should I do if the car air conditioner is not cooling?

1. Clean the condenser and filter screen 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 accumulation on it is getting thicker and thicker, resulting in poor heat dissipation and seriously affecting the refrigeration effect. It is not difficult to clean the condenser, when washing the car at home, prepare a bucket of water first, scrub it carefully with a rag, and mainly remove the dust stains on it.

Second, there is a blockage of the air conditioner's filter, resulting in the car air conditioner is not refrigerated, then we have to clean the air conditioner's filter, if the filter is seriously damaged or the service life is up, directly replace it with a new one.

3. After the above steps of adding refrigerant are completed, try the refrigeration effect of the air conditioner, if it is still not refrigerated, it is likely that the refrigerant in the air conditioning system is insufficient. The refrigeration effect is poor because less refrigerant is injected into the evaporator from the expansion valve, resulting in the refrigerant absorbing less heat. At this time, the refrigerant should be added, but it is important to note that the refrigerant bottle should not be held upside down.

After reading the above text introduction, people should already know the reasons why the car air conditioner will be refrigerated for a while and will not be refrigerated, there are many reasons for this situation, people should repair it immediately to achieve better results, and at the same time, what should I do if the car air conditioner is not refrigerated? Of course, you have to find a professional to repair it.

In this case, it is possible that the condenser tube is freezing. In the process of driving, if the air conditioner will be refrigerated at the beginning, and it will not be refrigerated for about 20 minutes, then you can stop to see if there are crystals on the outside of the condenser pipe, if there are crystals, it means that the pipes inside are blocked.

Question: Take a closer look at my description. Why is the air conditioner very strong at a speed of more than 80 kilometers and always has air conditioning?

Question: Why do you turn on the air conditioner again after 2-3 minutes after turning it off, and the air conditioner is back on? It doesn't make sense, the condenser tube doesn't melt so quickly when it freezes, does it?

Question: I'm a Subaru Forester car, and I've been to the 4S store to check it. They thought it was a clutch failure, and it cost 6,000 yuan to replace the motor compressor, so I consulted online. Do the condenser tubes need to be replaced?

If the failure is caused by the freezing of the condenser tube, why does the condenser tube not freeze when driving at high speeds? Has there been no problem with the air conditioner?

Let's talk about buying a car, using a car, maintaining a car, and repairing a car.

Half of the air-conditioning pipes are frozen, and the cause of icing is generally the water in the air-conditioning system (freon needs to be replaced). Or the evaporator temperature sensor is damaged. There are also new Peugeot 408 air conditioning pipes that need to be optimized for computer software when they freeze.

If it's an automatic air conditioner, if the temperature in the car is low, it won't refrigerate, and when the temperature in the car rises to a set temperature, it will start to cool.

Check the temperature control switch, and whether the evaporation tank is frozen, and look at the expansion valve.

Check whether the compressor is working normally, whether the refrigerant is sufficient, and then check the air conditioning circuit fuse, air conditioning relay, air conditioning switch, air volume switch and water temperature sensor, all of which are normal.

When connected to the diagnostic instrument query, it was found that there was a fault code stored, that is, "throttle positioning potentiometer damaged", and the fault did not occur by chance, and the fault code could not be cleared with the 05 function. After disassembling the throttle, it was found that the sliding plate resistance had turned black.

Due to the high output voltage of the engine control unit, the throttle sensor burned out, so after the engine control unit was replaced and matched, the air conditioning returned to normal operation.

Car air conditioner use tips.

1. The timing of turning on the air conditioner. In summer, the temperature inside the car is very high after being exposed to the sun, even if the sun is not exposed after work, the heat inside cannot be dissipated for a short time, and the inside of the car is still very hot. First of all, open the door or window to let the hot air out, and then turn on the air conditioner, and the air volume can be adjusted to a higher level.

2. The use of internal and external circulation. When the air conditioner is first turned on and the outside temperature is very high, you can use the internal circulation, only let the air in the car circulate and circulate, so that the cooling effect will be better. But after a period of time, you should switch to the external circulation to let the outside air in and keep the air in the car fresh.

If the outside temperature is not very high, you can also use the external circulation all the time to keep the air in the car fresh.

1. Whether the transmission belt is broken or relaxed, if the transmission belt is too loose, it will slip, accelerate wear and cannot transmit power.

2. Whether there is noise inside the compressor. Noise can be caused by damaged internal parts, which cannot be compressed effectively.

3. Whether the compressor clutch is slipping.

4. If you see a large number of bubbles through the observation window, it means that the refrigerant is insufficient. If you pour water on the condenser to cool it and there is still no foam in the observation window, it means that the refrigerant is excessive.

5. Check whether there is oil stain at the connection and seam of each device If there is oil stain at the connection or seam, it indicates that there is a refrigerant leakage there, and the relevant parts should be re-strengthened or replaced. (Leak detector can be used to detect leaks).

1. Condenser and fan status:

Is the condenser fins covered with dust If the condenser fins are covered with dust, the efficiency of the condenser will be greatly reduced.

Whether the condenser fan is working well.

2.The blower fan operation status makes the fan run at the "low, medium and high" three speeds, if there is abnormal noise or the motor is not running well, it should be repaired or replaced, otherwise the air supply airflow is insufficient.