When the car is on the refrigeration, the car suddenly has no power to turn off the refrigeration an

Car air conditioners are different from BAI household air conditioners, which are usually directly driven by the engine, and the power is basically between zhi1kw and a few kw. However, when the air conditioner is turned on, the blower is usually turned on for air circulation, otherwise there is no way to truly achieve refrigeration.

Although the power of the car can usually reach 80kw, but that is the maximum power of the engine, the actual use is often far from this value, especially at low speeds, the power is often only thirty or forty percent. In addition to overcoming the vehicle's driving resistance, the power of the engine needs to be used to charge the battery to compensate for the consumption of automotive appliances (including air conditioning fans, lamps, radios, etc.), as well as power assist systems for steering and braking. Therefore, although the power of the air conditioner does not seem to be large in general, the proportion occupied in the low-speed and starting phases is also considerable, and it is easy to feel a significant drop in power.

But at the medium and high speed stages, the reaction is not so noticeable. The greater the engine reserve power of the car, the less obvious the impact of the air conditioner, and the smaller the engine displacement, the easier it is to feel the impact of the air conditioner.

The automotive air conditioning compressor is the source of refrigeration, and the power of the automotive air conditioning compressor comes from the engine, and the power consumed by the light compressor when working is about 2kw, as well as the related current consumption. If you think about it, the total engine power of the car is also.

Seventy or eighty kilowatts, so the power is not very poor.

I hope I can help you, and one of yours is the motivation for me to answer the questions.

Check if there is any problem with the linkage part of the engine driving the compressor.

Idle refrigeration, driving, refrigeration often problems, should not be a heat dissipation problem, the most likely is too much refrigerant, high-speed driving, the compressor speed is fast, the refrigeration effect is good, but it is easy to make the high pressure too high, resulting in overload protection switch tripping, or evaporator freezing, resulting in liquid compression, low-pressure antifreeze protection switch tripping.

It is advisable to find a professional to double-check.

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

Hope it can help you, satisfied.

If the engine power is insufficient, the fault code and fuel pressure will be detected first.

This phenomenon is caused by the fact that the displacement of the car is too small, and if the power is strong, the car with a large displacement does not have this problem.

Common faults, may be the natural aspiration of the car's small displacement, it is normal for the power of the air conditioner to weaken, and the flameout is the problem, go to a professional 4S shop to check it!

For small displacement cars, turning on the refrigeration mode of the air conditioner will theoretically consume half a gear of power, so the power will drop instantly.

It should be that there is a problem with the car air conditioner, and you can go to the after-sales maintenance department to test and repair it.

The car suddenly has no power when the refrigeration is turned on, and the refrigeration can be turned off to drive normally, which is generally caused by excessive carbon collection of the engine, and it is recommended to check whether the car needs to be cleaned and maintained.

Hello, the car suddenly has no power when the refrigeration is running, and the refrigeration can be driven normally when the refrigeration is turned off.

If this is the case, you have to check whether the refrigerant is added too much, or whether the front condenser is blocked by dirt, because the difference between you driving and stopping is the heat dissipation problem of the front condenser, if the heat dissipation is poor, the pressure will rise, and the air conditioner will go in the protection state and shut down.

The vehicle stops down the air conditioning refrigeration has no effect, this phenomenon is the air conditioning compressor belt is loose, because the vehicle in the process of driving, the engine speed is higher, can drive the air conditioning to run, when the car stops the engine idle speed is low, and does not drive the air conditioning belt to operate normally, so you can check the air conditioning belt first, adjust to the appropriate preload, and then start the engine test.

The speed of the car engine can not meet the operation of the car air conditioner, and the car can be directly increased by idling.

Without refrigeration, the car can be turned on without starting, but the air conditioner is sent by the natural wind blown by the blower, because the air conditioning compressor is driven by the power of the engine, and the compressor will naturally not work when the car is turned off.

The natural wind blown by the blower is driven by the battery, and eventually the blower consumes too much electricity in the battery, which may cause the battery to lose power for a long time. Of course, this is only for traditional fuel vehicles.

It is okay to turn on the air conditioner when the car is turned off, but there is no refrigeration function, and it is easy to cause the battery to lose power after long-term use. Therefore, it is not recommended to turn on the air conditioner for a long time when the engine is off, and if you want to turn on the air conditioner for ventilation, you should also switch to the external circulation mode to allow fresh air to replenish the car.

Car air conditioning maintenance method:

Method 1: Inspect the air conditioner thoroughly.

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.

Method 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.

Hello landlord:

The car air conditioner cannot be turned on for refrigeration without the car, because the compressor of the air conditioning system needs to be driven by the speed of the engine. Therefore, if the engine does not work, the air conditioner does not work.

But so. For example, some buses can be seen with individual air conditioning. That's it.

You can turn on the air conditioner and refrigeration without running the engine of the car itself. But it's also powered by an air-conditioned engine! (Individually air-conditioned vehicles are generally available:.)

The main engine is an air-conditioned engine.

a total of 2 engines).

The above is a personal opinion. No copying, no plagiarism. I hope to be able to help you!

Hello! When the engine is turned off, the refrigeration compressor of the air conditioning system is driven by the engine belt, and when the engine is turned off, the belt stops rotating, and the compressor stops, so the air conditioning fan only blows natural wind!

The automotive air conditioning and refrigeration system consists of a compressor, a condenser, a liquid storage dryer, an expansion valve, an evaporator and a blower. Copper pipes (or aluminum pipes) and high-pressure rubber pipes are connected into a closed system between the components. When the refrigeration system works, the refrigerant circulates in different states in this closed system, and each cycle has four basic processes:

1. Compression process: The compressor sucks in the low-temperature and low-pressure refrigerant gas at the outlet of the evaporator, compresses it into high-temperature and high-pressure gas and discharges it out of the compressor.

2. Heat dissipation process: the superheated refrigerant gas at high temperature and high pressure enters the condenser, and due to the decrease of pressure and temperature, the refrigerant gas condenses into liquid and discharges a large amount of heat.

3. Throttling process: The volume of the refrigerant liquid with higher temperature and pressure becomes larger after passing through the expansion device, and the pressure and temperature drop sharply, and the expansion device is discharged in the form of mist (fine droplets).

4. Endothermic process: the mist refrigerant liquid enters the steamer carrier, so the boiling point of the refrigerant is much lower than the temperature in the evaporator, so the refrigerant liquid evaporates into gas. During the evaporation process, a large amount of surrounding heat is absorbed, and then the refrigerant vapor at low temperature and low pressure enters the compressor.

Extended information: Usage, maintenance and maintenance of air conditioners.

1. Choose the right air conditioner temperature. Of course, in the summer, many people like to turn the temperature very low. As everyone knows, when the temperature is adjusted too low, it will affect your health, so the temperature adjustment of the air conditioner must be appropriate.

The most suitable temperature for the human body is 20 to 25, and if it exceeds 28, people will feel stuffy. Below 14, people will feel cold. Therefore, the air conditioner should control the temperature in the car between 18 and 25, and the temperature is too low to make people sick.

2. Start the internal circulation immediately after entering the car in summer. When the car is parked for a long time under the scorching sun, some car owners like to turn on the air conditioner and turn on the internal circulation as soon as the car is started, thinking that this will make the temperature in the cabin drop a little faster. However, because the temperature inside the car is higher than the temperature outside the car, this is not very effective.

When you first enter the car, you should first open the windows for ventilation and turn on the external circulation to exhaust all the hot air. After the temperature in the compartment drops, it will be replaced with an internal circulation.

3. People know to use air conditioners in a fully enclosed state. The same is true for car air conditioners, if the doors and windows are not closed tightly during use, the cooling effect will be poor, and fuel will be wasted.

4. The direction of the air outlet can be adjusted at will. Some car owners do not pay attention to adjusting the direction of air conditioning when using air conditioning, which is not conducive to giving full play to the best effect of air conditioning. According to the principle that the cold air sinks and the hot air rises, the correct approach should be to turn the air outlet up when the air conditioner is turned on, and the air outlet should be turned down when the heating is turned on.

Air conditioning compressor failure: There is a good mu between the air conditioning compressor and the expansion valve, and the pressure cannot reach 150kpa 200kpa, resulting in the refrigerant inside the system not being able to circulate normally, and the air conditioner will not be cold when idling.

Expansion valve damage: The expansion valve cannot form a high pressure, less than 150kpa pressure, and the evaporator at the back makes Hu unable to cool down, resulting in no cold at idling.

Hello, first try to refer to the tape measure to stop the gas pedal in situ to do whether it is refrigerated, if not refrigerated, you should check whether the air conditioning pressure is too large, whether the temperature of the fan heating system is too high, only the car runs, there is an external fan only in the case of high heat refrigeration,

In this case, most of the heat dissipation of the air conditioner condenser is not good, it is recommended to check whether there is dust and debris blocking the heat dissipation, you can use the water gun to clean up the messy ridge, and turn on the air conditioner when the water gun is cleaned to check whether the compressor is refrigerated normally. In addition, it is not excluded that the engine coolant is missing and the compressor is faulty, and the vehicle that is more than 6 years old also needs to replace the air conditioning dryer, if there is too much water vapor in the air conditioning system, it will also make the air conditioning idle effect is not good, and the specific need to go to the repair shop to test and exclude, because as a maintenance worker in Lazhou, I said that I have seen too many strange faults.

Buy a car, use a car, maintain a car, repair a car, and listen to Chen Gong talk about cars.

It may be that the compressor is not working......I've had this happen to me as well, but after a few bumps down the high speed, the reboot is fine again.

Air conditioners do not accompany hand nuclear refrigeration need to check the following points:

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 a 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 and 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.

This situation may be due to the low pressure of the air conditioning pump in the idle state, or it may be that the refrigeration system of the air slow and stupid tone has a fault, and it can be eliminated and go to the 4S store for inspection and maintenance.

This is because there is a problem with the coolant of the car, and there is no way to cool it because it is running at high speed while driving.

It is very likely that there is a problem with the coolant of the car, or the condenser of the air conditioner is blocked, so there is a problem with the refrigeration.