What is the problem that Haier cold and hot air conditioning and refrigeration do not enter

Haier cold and hot air conditioning and refrigerant do not enter the cause and solution:

1. The system is clogged, and it needs to be cleaned before adding refrigerant.

2. There is no shortage of refrigerants, and there is no need to add refrigerants.

3. The method of adding refrigeration is wrong.

Refrigeration method:

1. Separate the pipeline, connect the copper pipe, connect the low-pressure pipe of the general compressor with the copper pipe left and right, then weld the copper pipe, and finally put the copper nano at the outlet end. Then expand the bell mouth.

2. Connect the pipeline and the vacuum pump, check whether the pipeline is leaking, vacuum first, then flush in 2MPa nitrogen, and keep the pressure for 2-3 days. Leak detection, if after 3 days, the pressure does not change, you can add refrigerant.

3. Open the valve, release the nitrogen, when the pressure is 0, start the vacuum pump, vacuum to, and then turn off the vacuum pump. Place the bottle opener on the bottle of refrigerant and connect the dosing tube to the pressure gauge.

4. Use a bottle opener to puncture the freon, let go of a little refrigerant, to flush the remaining little air in the pipeline, open the electronic scale, put the refrigerant on the electronic scale, look at the weight, and write it down, at this time you must remember this position, do not move, start the refrigerator, start the fluorine, the general refrigerator refrigerant filling amount is about 50 grams, you can start to use liquid filling, that is, put the freon bottle upside down, add more than 30 grams, and then put it back to the marked place, slowly fill it with gaseous, Always pay attention to the display of the electronic scale, about 3-5 grams more than the nominal value can be stopped, turn off the valve, use sealing pliers, and flatten the copper pipe at a distance of 5-10cm from the low-pressure pipe, and then cut the pipe with a cutter. At this time, you can turn off the power of the refrigerator and stop running.

1. The liquid filling joint is not connected properly, and the top valve is not opened.

2 did not turn on the refrigeration operation.

3. There is too little refrigerant in the barrel, and the lifting height falls down.

4. The compressor is inefficient.

5. Whether there is a lack of refrigerant in the pressure of the start-up pipeline.

It is impossible not to add it in the refrigerated state.

Hello, refrigerant should be added with professional tools, and play refrigeration mode. I don't know if you've done a lot of all this?

1. If the air conditioner is evacuated and the snow bend is planted carefully, it is necessary to repair the fault, such as ice blockage. Wrong refrigerant for other models. It should be reminded that after the air-conditioning system is emptyed, if the refrigerant is added, the air in the pipe must be evacuated or emptied.

Second, the refrigerant is also the refrigerant, it is in a closed environment for refrigeration cycle, if the refrigeration effect is not good, the refrigerant leakage caused by pipe damage in the air conditioning and refrigeration system should be considered, at this time should be checked and this silver should not be blindly added refrigerant, otherwise it may leak again.

So to sum up the above, the subject does not need to let go of the refrigerant to add the refrigerant. Generally, the air conditioner is refrigerant from the low-pressure pipe, and the air conditioner is turned on first to ensure that the compressor is in operation, and then the pressure gauge is used to add the refrigerant from the low-pressure pipe.

The reasons why the air conditioner can't add refrigerant can be known as follows:

The temperature is too high: If the ambient temperature of the air conditioner is too high, it may cause the working pressure of the air conditioner to be too high and unable to absorb the refrigerant into the refrigeration system.

Insufficient refrigerant: If there is not enough refrigerant, it may cause the air conditioner to not function properly. This usually happens when a new type of refrigerant is filled or when the type of refrigerant is changed, as the new type of refrigerant has not yet fully entered the system.

Clogged pipes: If the pipes are clogged with dirt and impurities, it may cause refrigerants to not enter the air conditioning system.

System leaks: If there is a leak in the air conditioning system, it can lead to a leak of refrigerant, which can deprive the system of enough refrigerant to function.

Network Valve Failure: If the network valve fails, it may prevent refrigerants from entering the air conditioning system.

It should be noted that before refueling, it is important to ensure that the air conditioning system is turned off to prevent refrigerant leakage or damage to the machine. If you are unable to solve the problem by yourself, please contact a professional repairer, Lu Hu, for inspection and repair.

From a scientific point of view, this phenomenon is that if the inside of the air conditioner is already filled with refrigerant, it is not possible to add more refrigerant to it. This is because there is only a limited volume inside the air conditioner, and the volume has reached the upper limit after being filled with refrigerant, and then adding the state refrigerant will cause the pressure to be too high, which will make the air conditioner work abnormally and even damage the air conditioner.

Therefore, in the case of air conditioners, refrigerant filling can only be carried out in the event of a refrigeration problem.

The main reasons are:

Refrigerant leakage: If there is a leak inside the air conditioner, the refrigerant will be lost, resulting in a decrease in cooling effectiveness. In this case, it is necessary to repair the leak as soon as possible and replenish the appropriate amount of refrigerant.

Installation of Sail Biyu quality problems: If the air conditioner is not operated properly or there are quality problems during the installation process, it may cause the refrigerant to be unable to circulate and use normally, and it needs to be reinstalled or repaired at this time.

Mismatch of refrigerant type: Different types of air conditioners require different types and quantities of refrigerants, if you use inappropriate refrigerant or add too much refrigerant, it will affect the cooling effect and power consumption of the air conditioner.

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To be more specific, the air conditioner may not be able to refrigerant due to the fact that it has been filled with enough refrigerant, refrigerant leakage, or installation quality issues. When using air conditioners, it is necessary to pay attention to regular maintenance and maintenance to ensure that they work normally, and at the same time, it is also necessary to avoid environmental pollution and equipment damage caused by indiscriminate addition of refrigerants.

The inability to add refrigerant with empty envy may be caused by one of the following reasons:

Blocked air conditioning lines: Blocked air conditioning lines can cause the refrigerant to not enter the air conditioning compressor through the lines. You can check the aircon lines for blockages or leaks and make sure that all the lines are clear.

Insufficient refrigerant: Insufficient refrigerant can cause the air conditioner to not function properly. You can check if the refrigerant storage tank is sufficient or if the refrigerant needs to be replaced.

Air conditioner failure: An air conditioner failure can cause the refrigerant to not enter the air conditioner compressor. You can check if the circuit of the air conditioner is working properly and if the compressor is running properly.

Unbalanced refrigerant filling: Improper refrigerant filling operations can prevent refrigerant from entering the air conditioning compressor. You can check the refrigerant filling manual to make sure the filling process is up to specification.

If you are unable to determine the specific cause of the problem, it is recommended that you contact the after-sales service personnel or professional maintenance personnel for maintenance.

If the air conditioner is unable to incorporate refrigerant, there may be several reasons:

Defective refrigerant bottles or pipes: Inspect the refrigerant bottles or pipes for damage or blockages. If the refrigerant bottle is cracked or the pipes are clogged, it will not be possible to inject the refrigerant into the air conditioning system.

Not enough refrigerant: Make sure there is enough refrigerant in the refrigerant bottle. If there is not enough refrigerant, it may not be possible to inject enough refrigerant into the air-conditioned celery system.

Error: Make sure you're following the correct steps. Different brands and models of air conditioners may have different refrigerant injection methods and procedures, please read the user manual of the air conditioner carefully or refer to the operation guide provided by the manufacturer.

System Failure: If you have followed the correct operating steps but are still unable to add refrigerant to the air conditioning system, there may be a fault with the air conditioning system itself. In the case of this cavity replanting, it is recommended to contact the air conditioner manufacturer's technical support team or professional air conditioner maintenance personnel for further diagnosis and repair.

The refrigerant of the air conditioner cannot be added, and it is very likely that the reason is that there is no vacuum inside the air conditioner, which leads to the pressure of the old Bi part of the body, and it is impossible to add the refrigerant normally. Or the expansion valve of the air conditioner is blocked, resulting in the refrigerant being unable to be added from the valve.

Air conditioner refrigeration may occur when there is a leak in pipes, connectors, valves, or other parts of the indoor and outdoor units.

The reason why refrigerant is still not cold:

1. The refrigerant is not the refrigerant of the matching model of the air conditioner;

2. If there is a leakage or air seepage of refrigerant, it may not be checked when adding refrigerant;

3. Other components inside the air conditioner are damaged, resulting in no refrigeration.

The following points need to be paid attention to when adding refrigerants to air conditioning:

1. When adding, first add from the high-pressure pipeline, and then add from the low-pressure pipeline, the compressor cannot run when adding from the high-pressure pipeline, and the air-conditioning system must be at the maximum load when adding from the low-pressure pipeline.

2. When looking at the meter, you can see which pressure gauge is added from which pipeline, the low pressure is generally above MPa, and the high pressure is generally above MWPA.

3. When adding, two to three cans are generally added, and the capacity of each can is 300 grams.

4. You can't add more or less, depending on the specific model instruction manual, the pressure will be greater if you add more, and the refrigeration effect is not good if you add less.

1.Leakage inside the air conditioner. If there is a leak in the refrigeration pipeline, infrared sensor pipeline, compressor and other parts of the air conditioner, the refrigerant will not be able to enter the air conditioning system and leak out directly.

This is the most common cause and needs to be overhauled or replaced with the corresponding parts. 2.Faulty piping or solenoid valves.

If the liquid pipe, steam pipe, various solenoid valves and plug valves of the air conditioner cannot be opened or closed normally, the refrigerant will not flow into the various parts of the air conditioner and flow back to the outside, resulting in the failure of adding the cold control media. It is necessary to overhaul and repair the pipeline and each valve. 3.

Air conditioner leakage or poor compressor sealing. If there is an air leak in the shell or compressor of the air-conditioning unit, although the refrigerant can be dismantled into the air-conditioning system, it will quickly leak out from the air leakage point, resulting in the inability to maintain the amount of refrigerant, and the refrigerant cannot be added to the bridge. This also requires the repair and replacement of the casing or compressor.

4.The air conditioner return pipe is blocked.

Summary. Hello dear, you want to understand what is the reason why the air conditioner can't add refrigerant, right? There may be several reasons why the air conditioner cannot be refrigerant:

1. Insufficient refrigerant in the air conditioning system: If the refrigerant or refrigerant in the air conditioning system is insufficient, it will lead to the inability to add refrigerant. 2 Refrigerant filling interface failure:

If there is a malfunction in the filling interface, such as a clogged interface or a poor seal, it will not be possible to add refrigerant. 3. Air leakage in the air-conditioning pipeline: If there is air leakage in the air-conditioning pipeline, it will affect the normal operation of the air-conditioning system, so that the refrigerant joining operation cannot be carried out.

Hello dear, you want to understand what is the reason why the air conditioner can't add refrigerant, right? There may be several reasons why the air conditioner cannot add refrigerants: 1 The refrigerant in the air conditioning system is not in the world

If there is not enough refrigerant or refrigerant in the air conditioning system, it will not be possible to add refrigerant. 2 Refrigerant filling interface failure: If the refueling interface fails, such as blocked interface or poor sealing, it will lead to the inability to add refrigerant.

3. Air leakage in the air-conditioning pipeline: If there is air leakage in the air-conditioning pipeline, it will affect the normal operation of the air-conditioning system, so that the refrigerant joining operation cannot be carried out.

4 Failure of the air conditioning unit: If there is a problem with the air conditioning unit, such as a faulty compressor or an abnormal sensor of the stupid potato, etc., it will also lead to the inability to carry out the refrigerant filling operation. If you find that the air conditioner cannot be refrigerated, it is recommended that you first check the refrigerant, drain lines, and filling connections in the air conditioning system to determine whether the refrigerant is working properly.

If the problem still cannot be solved, it is recommended that you contact a professional aircon repair service provider for repair treatment. We hope that the above information will be helpful to you. <>

Summary. 1.Lack of refrigerant Car air conditioners will generally add refrigerant once every 2 to 3 years, and some cars even add one a year. Even if the air conditioner is sealed very tightly, it still can't resist the refrigerant flying away, plus there are slight leaks in the air conditioning pipeline or condenser.

2.Damage to the air conditioner flap The fault of the air conditioner flap motor damage is relatively rare, but it is not uncommon. The flap motor is very troublesome, the flap motor is generally in the middle and lower part of the instrument panel, which belongs to the main switch of the air conditioning tuyere, it is broken, which means that the switch is broken, even if the air conditioner can refrigerate the cold air can only drill out of the crack, which has the meaning of drinking water to quench thirst.

3.The condenser is too dirty in summer, and the air conditioning is often found to be poor, and there is no problem with the air conditioning system to detect, the high and low pressure is basically normal, and the car owner is often recommended to do an activity to clean the water tank when going to the 4S shop to repair the car. 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.

4.Damage to the throttle valve or expansion valve The failure of the expansion valve and throttle valve directly leads to the defective air conditioner, which is more cumbersome to check and needs to be repaired by a more professional repair shop.

What is the reason why the air conditioner can't be added?

Hello, dear, I'm glad that I'm going to help Qin Tan close the family to answer this question, and I'm quickly asking for relevant information about the broken material, please wait patiently, if I can make you satisfied, please give me a thumbs up, love you.

1.Lack of refrigerant Car air conditioners will generally add refrigerant once every 2 to 3 years, and some cars even add one a year. Even if the air conditioner is sealed very tightly, it still can't resist the refrigerant flying away, plus there are slight leaks in the air conditioning pipeline or condenser.

2.Air conditioner flap damage Air conditioner flap motor damage This is a relatively rare fault, but it is not uncommon. The flap motor is very troublesome, the flap motor is generally in the middle and lower part of the instrument panel, which belongs to the main switch of the air conditioning tuyere, and it is broken to rent a bad switch, even if the air conditioner can refrigerate the cold air can only drill out of the crack, it has the meaning of drinking to quench thirst.

3.The condenser is too dirty in summer, and the air conditioning is often found to be poor, there is no problem with the detection of the air intelligence cracking system, the high and low pressure is basically normal, and the owner is often recommended to do an activity to clean the water tank when going to the 4S shop to repair the car. 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.

4.Damage to the throttle valve or expansion valve The failure of the expansion valve and throttle valve directly leads to the defective air conditioner, which is more cumbersome to check and needs to be repaired by a more professional repair shop.

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