When the air conditioner is turned on, only the cold air comes out, and it can t be heated, what s g

1. Anti-cool wind performance.

When the air conditioner is just heated, the internal unit will not produce air, and the demand for preheating must be after the temperature is reached, and the hot air will be blown.

This is the anti-cool air performance of the air conditioner, of course, some air conditioners have been used for a long time, the anti-cool wind performance loses its effect, and the cool breeze will appear in the early stage of heating.

2. The remote control is debugged incorrectly.

Take a closer look at the air conditioner remote control.

Maybe whether the button is pressed to make heat, will it be wrong, if it is wrong, adjust it in time.

3. Leakage of remote control.

If the temperature is not high or cool after 15 minutes of use of the air conditioner, it may be the refrigerant inside the air conditioner.

If there is a leak, you need to find a professional to fluoride the air conditioner.

4. Defrosting process.

In the process of heating the air conditioner, it will carry out a defrosting process, and in the process of defrosting, the air conditioner will actively stop working, and when the defrosting is completed, it will take the initiative to open the heating function again.

5. The external unit is damaged.

If none of the above reasons are the cause of the cold air coming out of the air conditioner, it may be that the CT coil is open, or the load is not detected, the compressor is not allowed to work, or the CT current mutual sensing circuit of the computer board of the outdoor unit is broken; After confirmation, replace the motherboard and EEPRO of the external unit in time.

1. The temperature setting is unreasonable, it is recommended to set it at 30 degrees, use a breeze, the room should be closed, and the window should be opened for ventilation appropriately.

2. The inner filter screen and the condenser of the outer unit are too dirty, which affects the heating effect and can be cleaned.

3. The system pressure is low, and if the normal heating pressure is lower than this standard, the heating effect will be poor, so it is recommended to add fluoride in an appropriate amount.

4. It is difficult for the air conditioner to work in an environment with low ambient temperature.

It is recommended to clean up and adjust it yourself, if it still can't be used normally, you can contact the manufacturer for after-sales inspection. For more information, please contact us.

Ten minutes before the air conditioning heating is a cold air design, blowing out of the cold air, and then there will be hot air, this time do not adjust the remote control, in addition to the principle of air conditioning heating is that the air conditioner absorbs outdoor heat and circulates into the room, if the outside temperature is too low to heat will not be good.

1. You haven't adjusted the heating mode, how to adjust it, read the manual, there are certain differences between different air conditioners. 2. Your air conditioner is single cold and cannot be heated. 3. In your environment, the outdoor temperature is too low, such as minus 10 degrees, and your air conditioner does not have auxiliary electric heating, so the outdoor unit cannot work normally.

The air conditioner we use is not heated by electricity, and the compressor is particularly cold, and the outdoor unit cannot work (the working limit of different air conditioners is different), it is recommended to read the manual or call customer service to ask. 4. If the air conditioner is broken, call customer service for maintenance.

The air conditioner upstairs is in the mode of heating operation, it has the function of cold air prevention, and there will be no room cold air design Please see if your air conditioner is a heat pump air conditioner Then see if the operation mode is heating If the operation is correct, it is estimated that it is a problem asked by the coil sensor of the indoor unit, otherwise it will not blow out if the temperature is not reached Find a professional master to come to the door to test.

You turn off the air conditioner, turn off the power for five minutes, wipe the movie on, turn the air conditioner on the heating, and you're good to go.

Summary. Take the Midea brand air conditioner as an example:

1. It may be a problem caused by the poor installation position of the air conditioner. If the external unit of the air conditioner is installed in a relatively small location, the heat dissipation of the external unit of the air conditioner will be very poor. Or the installation position of the external unit exceeds the upper range of the internal unit too much, resulting in the refrigeration oil can not return to the compressor normally, and it will lead to the lack of oil in the compressor cylinder for a long time, so that the air conditioner only produces hot air and does not produce cold air.

2. It may be that too much or too little refrigerant is added to the air conditioner. If too much refrigerant is added to the air conditioner, it may cause damage to the air conditioner compressor and cause abnormalities. If too little refrigeration oil is added, the compressor may be damaged.

Therefore, the addition of refrigeration oil should be added in strict accordance with the instructions for the use of air conditioners.

The air conditioner only emits hot air, not cold air.

Wait a minute, dear.

Take the Midea brand air conditioner as an example: 1. It may be a problem caused by the poor installation position of the air conditioner. If the external unit of the air conditioner is installed in a relatively small location, the heat dissipation of the external unit of the air conditioner will be very poor.

Or the installation position of the external unit exceeds the upper range of the internal unit too much, resulting in the refrigeration oil can not return to the compressor normally, and it will lead to the lack of oil in the compressor cylinder for a long time, so that the air conditioner only produces hot air and does not produce cold air. 2. It may be that too much or too little refrigerant is added to the air conditioner. If too much refrigerant is added to the air conditioner, it may cause damage to the air conditioner compressor and cause abnormalities.

If too little refrigeration oil is added, the compressor may be damaged. Therefore, the addition of refrigeration oil should be added in strict accordance with the instructions for the use of air conditioners.

3. It may be that the function of the air conditioner has not been adjusted, the air conditioner only produces hot air, not cold air, or the refrigeration function of the air conditioner is not turned on, so there is no cold air, in this case, you can use the remote control to adjust the refrigeration mode.

4. It may be that there is a failure of the air conditioner itself, for example, the condenser does not dissipate well, resulting in excessive pressure inside the system, an increase in current, and an increase in temperature.

The main reason why the air conditioner does not blow cold air is because the compressor of the air conditioner is not working, and the reasons for damaging the air conditioner compressor are as follows:

1. The system is not working well. Once the system enters the impurities, it is easy to cause the cylinder to jam. Generally, when repairing, special attention should be paid not to drop the welding slag into it, of course, it may also be caused by the poor quality of the refrigeration oil inside the system.

2. Excessive refrigeration oil is added inside the system, which may lead to damage to the air conditioning compressor. On the other hand, if too little refrigeration oil is added, the compressor may be damaged. Therefore, the addition of refrigeration oil should be added in strict accordance with the instructions for the use of air conditioners.

3. The problem of the air conditioner itself, such as the poor heat dissipation of the condenser, causes the internal pressure of the system to be too large, the current increases, the temperature rises, and the compressor exhaust valve and suction valve are collung for a long time, thereby damaging the compressor.

4. There is a problem when installing the air conditioner, for example, the external unit is installed in a relatively narrow position of the molding liquid, so that the heat dissipation of the external unit of the air conditioner will be very poor. Or if the installation position of the external unit exceeds the range of 5 meters above the internal unit, the refrigerated oil cannot return to the compressor normally, and the compressor will be stuck due to lack of oil for a long time.

5. It is also possible that the connecting pipe of the indoor and outdoor machines is broken, resulting in excessive pressure of the refrigerant in the system, resulting in overheating of the compressor, and the compressor is never damaged by carelessness.

Summary. Hello, first of all, see if the remote control of the air conditioner is turned on the heating mode, sometimes the cooling mode is turned on instead of the heating mode, and this phenomenon will occur.

The air conditioner only has cold air and no hot air.

Hello, first of all, see if the remote control of the air conditioner is turned on the heating mode, sometimes the cooling mode is turned on instead of the heating mode, and this phenomenon will occur.

If there is no hot air in the heating mode, it means that the air conditioner is faulty, and there are the following situations: (1) Poor heat dissipation. You can check whether there is dirt in the condenser pipe of the air conditioner, and the dust and dirt phenomenon will appear after the air conditioner is used for too long, and it can be solved after cleaning the condenser.

2) Dirt and dirt appear on the evaporator or strainer. As long as it is cleaned, the problem can be solved. (3) The pipeline system is blocked.

You can refer to the pressure gauge to check this problem, judge and eliminate the phenomenon, and re-process the system to restore the normal operation of the air conditioner. (4) Too much refrigerant, which can be solved by reducing it appropriately. (5) The power supply is in poor contact, and the wire is loose, check the circuit.

For some other faults that you can't solve by yourself, please ask a professional after-sales master to fix it!

May you have a light when it's dark, an umbrella when it's raining, someone to accompany you on the road, and if there are no other problems, I wish you a happy life.

The maintenance master welded the four-way valve in your air conditioner wrongly, welded the refrigeration end to the heating end, and the heating end to the refrigeration end, or there was a problem with the circuit board, and the instructions were wrong. Call the maintenance master to repair it, this is their work is not responsible, you can complain to their head office, so that their dealer will be fined.

1. Check whether there is still refrigerant in the air conditioner, if not, add refrigerant, and there will be hot air in the case of refrigerant leakage or consumption.

2. If there is no hot air at the air outlet of the outdoor unit, it is likely that the thermal protection makes the compressor not work, resulting in the air conditioner being set in refrigeration, but not refrigeration.

3. Look at the setting mode on the remote control, if the mode is correct, it means that the four-way valve is broken or the computer board is broken.

The refrigeration system is broken, hit ** and ask someone to repair it.

Unreasonable temperature setting, too dirty internal filter and external condenser, low system pressure, too large and unclosed heating environment, etc., will lead to the air conditioner not heating, and it is necessary to screen out accurate faults and then carry out targeted maintenance to eliminate faults. Solution: 1. The temperature setting is unreasonable, it is recommended to set it at 30 degrees, use a light breeze, and the room should be closed.

2. The inner filter screen and the condenser of the external unit are too dirty, and the air conditioner that has been used for a long time will naturally affect the heating effect because it has accumulated a lot of dust. 3. The system pressure is low, and the normal heating pressure is lower than this standard, the heating effect will be poor, it is recommended to add an appropriate amount of fluoride, and you can find a professional master to add fluoride, and you can make an appointment for a suitable time to add it. 4. It is difficult for the air conditioner to work in an environment with low ambient temperature, if the heating room is too large but the air conditioning power is small, then it will also feel that the blowing is cold air, or the refrigeration is turned on in mode, and it is OK to change to a high-power air conditioner, and set the appropriate temperature.

Note: The maintenance of the air conditioner sometimes needs to go outdoors, such as adding fluoride, you must pay attention to safety when you operate it yourself, and if you are not in a hurry, you will directly let the maintenance master come to the door for maintenance.

Air conditioners are relatively common household appliances that can be used to regulate the indoor temperature and give you a comfortable living environment. So, let's introduce to you what happens when the air conditioner doesn't blow hot air and cold air.

1. What happens if the air conditioner doesn't blow hot air and cold air?

1. It may be that the remote control has turned on the cold air mode, resulting in no hot air. 2. Air conditioning failure, such as control circuit board failure, resulting in no hot air blowing cold air. 3. The power supply of the air conditioner is not in good contact, the wires are loose, and there is a fault during operation, resulting in no hot air blowing and cold air.

4. There is too much refrigerant in the air conditioner, resulting in no hot air blowing and cold air. 5. The air conditioner radiator is faulty.

Second, what to look for when buying an air conditioner.

1. Air conditioning brand.

When choosing an air conditioner, you should choose the right brand, a good brand is better in terms of quality, after-sales and other services, so you can consider a few more brands before purchasing, and then make comparisons to understand the brand's reputation from relatives and friends.

2. Refrigeration capacity of air conditioning.

If the space area is about 20 square meters, you can choose an air conditioner with a cooling capacity of about 3500w, an area of about 10 square meters, you can choose a cooling capacity of about 2000w, or you can choose an air conditioner with a suitable cooling capacity for a more specific area.

3. The energy efficiency ratio of air conditioners.

The higher the energy efficiency of the air conditioner, the more power saving, so when purchasing, we should pay attention to the energy efficiency ratio of the air conditioner, the current air conditioning energy efficiency level on the market is divided into 1, 2 and 3, the 1 energy efficiency level will be more energy-saving, but ** will be more expensive than other grades, in the long run, you can choose the space of the 1 energy consumption level, you can save a lot of electricity.

4. Select frequency conversion and fixed frequency.

Air conditioners can be divided into fixed-frequency air conditioners and inverter air conditioners, and the sales of inverter air conditioners on the market are better than fixed-frequency air conditioners, because inverter air conditioners are more comfortable and energy-saving, so it is recommended that you try to choose inverter air conditioners when purchasing air conditioners.