The new Chang an Star manual air conditioner does not heat

The reasons for not heating are as follows:

1. When the user turns on the air conditioner for heating, it takes about 8-12 minutes to "defrost", because when the outdoor temperature is lower than 0 degrees Celsius, the outdoor unit of the air conditioner will immediately frost. The temperature in the room may have dropped, and some users mistakenly believe that the heating effect of the air conditioner is not ideal.

2. Due to improper use and maintenance by users, etc. The reason why the air conditioner does not work properly is because the electricity consumption increases significantly, which may cause the power supply voltage in the area to be unstable or too low.

3. There may be a lack of fluorine, and at this time, you need to ask after-sales service personnel to check the fluoride. Most users use heat pump type or heat pump plus auxiliary electric heating type air conditioner.

4. The applicable area of air conditioning heating is smaller than the area of the room using air conditioning, resulting in the room temperature cannot rise ideally, that is, the customized heat is not enough. At this time, it is necessary to use cloth curtains and spray-painted portrait partitions to reduce the area of the room. It is recommended not to turn on the air conditioner below -5 degrees, use auxiliary electric heating, use wall-hung boilers or heaters, and try to avoid using air conditioners during peak electricity consumption when using air conditioners.

The vehicle heating system is not hot can be divided into two reasons, one is caused by the engine cooling system, and the other is caused by the poor work of the heating control mechanism.

The method of judging is very simple, look at the temperature of the two inlet pipes of the small water tank of the warm air, if the two pipes are hot enough, it means that the air volume control mechanism is a problem, on the contrary, if the two water pipes are cold, or one is hot and one is cold, it means that it is a problem with the cooling system.

The van air conditioner is heated by the engine antifreeze circulation, it may be that the pipeline is not working, or the fan does not turn [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

It's the condenser ** that there is too much dust, which causes the wind from the blower to not come over [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, no heating, is it that your switch is not turned on well, and whether the air conditioning switch is turned on! This is to test the water temperature and heat [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, you can hit the heater directly. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

It could be that the switch inside the engine compartment is not turned on. You touch the water pipe of the warm air tank and try it [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

The heater switch is not turned on [There is a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

SC6371 engine model JL-474Q has a tail wing.

There may be problems with the cooling system, and the user is advised to replace the thermostat.

The engine cooling system has air resistance, which leads to poor circulation of the cooling system, resulting in high water temperature and poor heating failure. If there is always gas in the cooling system, it is likely that the cylinder head gasket is damaged to the cooling system, if the inlet pipe of the warm air small water tank is very hot, and the water outlet pipe is cold, this situation should be the warm air small water tank is blocked, and the warm air small water tank should be replaced.

If the working temperature of the engine does not rise, then the heater must not be hot. It means that there is a problem with the cooling system of the engine, whether you have removed the thermostat and not installed it, and whether the cooling fan has been rotating at high speed without low speed or simply has been rotating, if this is the case, then deal with these two aspects separately.

If the engine can reach the normal working temperature normally, but the warm air is not hot, then the first thing to check is whether the heating valve is not opened, or there is a problem with the temperature control flap inside the air conditioning system. Is it loose and falling off the adjustment cable.

Most of the reasons are clogged warm air tanks, which are best replaced.

Also check to replace the thermostat,

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions!

Hello. The Chang'an Star warm air is not hot, and the causes of the failure include the failure of the warm air switch, the failure of the warm air water tank and the insufficient water temperature.

First, if the fault occurs, the heater switch should be checked first to see if the heater switch can be rotated, if the heater switch does not move, the heater switch needs to be replaced.

The second check the temperature of the upper water pipe and the lower pipe of the warm air water tank to see if it is the same, if the upper water pipe is hot and the lower water pipe is cold, then this situation means that the warm air water tank is blocked, in this case, the warm air water tank needs to be replaced.

It is recommended that it is best to go to a 4S shop or a professional car repair shop for inspection and maintenance, so as to avoid unnecessary damage to the vehicle due to improper operation by the repairman when repairing in an ordinary repair shop outside. When the time comes, the gains outweigh the losses. Thank you very much for this inquiry, and I hope my answer can be helpful to you.

What's going on if the warm wind of Chang'an Star is not hot?

Hello, don't click to end, I'm textual to give you the full answer, 2-3 minutes.

Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! Hello. The Chang'an Star warm air is not hot, and the causes of the failure include the failure of the warm air switch, the failure of the warm air water tank and the insufficient water temperature.

First, if the fault occurs, the heater switch should be checked first to see if the heater switch can be rotated, if the heater switch does not move, the heater switch needs to be replaced. The second check the temperature of the upper water pipe and the lower pipe of the warm air water tank to see if it is the same, if the upper water pipe is hot and the lower water pipe is cold, then this situation means that the warm air water tank is blocked, in this case, the warm air water tank needs to be replaced. It is recommended that it is best to go to a 4S shop or a professional car repair shop for inspection and maintenance, so as to avoid unnecessary damage to the vehicle due to improper operation by the repairman when repairing in an ordinary repair shop outside.

There are several reasons why Changan Star car air conditioner is not refrigerated:

1. The air-conditioning system lacks freon, and the air-conditioning system needs freon as the medium to conduct refrigeration capacity.

2. The compressor pump head is damaged, the compressor pump head is equipped with an electromagnetic clutch, if the suction is not closed, the compressor will not rotate, and naturally there will be no refrigeration capacity, replace the pump head.

3. Circuit failure, if the fuse of the air conditioning system is damaged, the compressor has no power supply end, and naturally it will not be refrigerated, and the fuse can be replaced to solve it.

The specific operation steps for adding freon to Chang'an Star are as follows:

1. Find the low-pressure pipe filling port.

2. Connect the upper pressure gauge.

3. Connect the freon storage tank.

4. At this time, the car will begin to be filled with freon, and the operation will be completed when the pressure is reached.

Insufficient cooling occurs, and maintenance workers, as well as those who demand better diagnostic methods and thinking in the maintenance process, carefully and completely remove the maintenance workers need special attention by the refrigeration system. Fail.

Nowadays, cars are basically, but equipped with air conditioning to provide a comfortable environment for motorists, it depends on the default season, so for a long time to work, air conditioning, if you have various faults, to the phenomenon of insufficient cooling occurs more frequently car air conditioning today, principles and failures I would like to discuss the causes and cooling maintenance of inadequate.

Automotive air conditioning systems are known as automotive air conditioning systems, and their main purpose is to provide a comfortable environment for occupants in any climate and driving conditions. People's environmental needs tend to differ due to their physical health, age, gender, habits, and health status. However, under normal circumstances, most people's requirements are still roughly the same.

Proper temperature, proper humidity, proper airflow, and clean air make up the three components of an air conditioner: temperature, humidity, and cleanliness. A complete automotive air conditioning system achieves the goal of creating a comfortable environment on board by regulating temperature, humidity, wind speed and ventilation.

Check that the air outlet equipment is in good condition. There is also whether the air conditioning compressor is not protected. See if the compressor is protected, touch it with your hands, the compressor is very hot, it is protected or stuck.

If there is no leakage of Freon or 134A, and the pressure is normal, it is recommended that you check the following parts: First, the high and low voltage switches in the system.

The second is to check the temperature control switch.

The third is to check the expansion valve.

Fourth, check whether there is air mixed in the refrigeration system.

Fifth, replace the drying bottle.

Sixth, check the performance of the compressor

1.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.The air conditioner is broken;

2.The air conditioner does not refrigerate due to a power outage;

3.The air conditioner is automatically identified and stopped by the thermostat.

The specific inspection methods are:

1.Check the compressor belt: if the belt is too loose, it should be adjusted, otherwise it is easy to make the air conditioning system poor refrigeration. Inspect the air conditioning system hose fittings for oil stains. If a leak is found, go to the maintenance office in time to solve it.

2.Clean the condenser: Because the surface of the car condenser is cleaned, it is easy to dissipate heat energy to the outside world. Regular cleaning of the condenser surface can greatly improve the cooling effect of the air conditioning system.

3.Check the refrigerant level height: Check the refrigerant level height.

The glass peephole is usually installed on the lid of the dryer to operate the motor and air conditioning system to observe the flow of refrigerant through the glass peephole. If the air conditioner is working properly, you can see through the peephole that the clear refrigerant is constantly flowing, and there are occasional small bubbles at high temperatures

Summary. The heating system is not hot can be divided into two reasons, one is caused by the engine cooling system, the other is caused by the poor work of the heating air control mechanism, look at the temperature of the two water inlet pipes of the small water tank of the warm air, if the two pipes are hot enough, it means that the air volume control mechanism is a problem, on the contrary, if the two water pipes are cold, or one is hot and one is cool, it means that it is a cooling system problem. Problems that can arise with the cooling system are:

First, the thermostat is always open or the thermostat is opened too early, so that the cooling system is prematurely circulated, and the outside air temperature is very low, especially when the car is running, the cold air quickly cools the antifreeze, the engine water temperature does not rise, and the warm air will not be hot. The second is that the impeller of the water pump is damaged or lost, so that the flow through the small tank of warm air is not enough, and the heat cannot come up. The third is that the engine cooling system has air resistance, which leads to poor circulation of the cooling system, resulting in high water temperature and unheated heater.

Kiss you can open the front cover, there is a thin hose inside, pull it out and exhaust it, hello Check the warm air water tank, the heating system is not hot can be divided into two reasons, one is caused by the engine cooling system, one is caused by the poor work of the control mechanism of the warm air, look at the temperature of the two inlet pipes of the small water tank of the warm air, if both pipes are hot enough, it means that it is a problem with the air volume control mechanism, on the contrary, if the two water pipes are cold, or one is hot and one is cool, it means that it is a problem with the cooling system. The possible problems of the cooling system are: one is that the thermostat is always open or the thermostat is opened too early, so that the cooling system is prematurely circulated, and the outside air temperature is very low, especially when the car is running, the cold air quickly cools the antifreeze, the engine water temperature does not rise, and the warm air will not be hot.

The second is that the impeller of the water pump is damaged or lost, so that the flow through the small tank of warm air is not enough, and the heat cannot come up. The third talk is that the engine cooling system has air resistance, which leads to poor circulation of the cooling system, resulting in high water temperature and poor heating air failure.

See if there's air in the coolant, and see if the heating and cooling flaps aren't adjusted.

Hello. The operating principle of a car air conditioner is exactly the same as that of a home air conditioner. The main rock destroyer components are: compressor, condenser, section flower, evaporator.

If the refrigerant (freon) in the system leaks, resulting in a serious shortage of refrigerant in the system, the air conditioning system will not be able to cool normally. Although there is wind blowing out, the air temperature is not significantly cooler (you can only feel that the air temperature is slightly lower than the ambient temperature).

In addition, if the compressor itself fails and does not work, the air conditioning system is also impossible to refrigerate, and the fault phenomenon is that there is air blowing out of the air outlet, but the air outlet temperature is exactly the same as the ambient temperature, and there is no refrigeration effect at all. At this time, you should go to the maintenance manufacturer as soon as possible to overhaul the air conditioning compressor and measure the refrigerant pressure of the system.