What are the six reasons why Midea s air conditioner is not cooling?

Reasons why Midea's air conditioner is not cooling:

1. The biggest possibility is that the freon of the air conditioner is not enough, if your air conditioner has been used for three years or more, the refrigeration effect is reduced or not refrigerated. You only need to ask the after-sales maintenance personnel to add a little bit.

2. There is also a possibility that the power supply voltage is not enough, because the normal starting voltage of the air conditioner is 220V+-10%. Generally, in China's power supply system, almost all compressors above 200V can be started.

When it is above 180V, there are 70-80 that can be started, and when it is above 160V, only a few can be started, if the power supply voltage is too low, it will affect the normal operation of the air conditioning product.

3. The power of the air conditioner is not enough, if the indoor space is relatively large.

The refrigeration speed of air conditioning will be relatively slow, and it is necessary to pay attention to the choice of air conditioning, 150-250w square meters when cooling, 250-350w square meters when heating, and other factors such as space height, level orientation, sealing performance and residential population.

How it works:

Air conditioners are divided into single cooling air conditioners and cold and warm air conditioners, the working principle is the same, and most of the refrigerants used in air conditioners before were freon. The characteristic of Freon is that when it changes from a gaseous state to a liquid state, a large amount of heat is released.

When the liquid state changes from a gaseous state, it absorbs a large amount of heat. Air conditioners are designed based on this principle.

The compressor compresses the gaseous refrigerant into a gaseous refrigerant with high temperature and high pressure, and then sends it to the condenser (outdoor unit) to dissipate heat and becomes a liquid refrigerant at room temperature and high pressure, so the outdoor unit blows hot air.

The above content reference: Encyclopedia - Air Conditioning.

The reasons why Midea air conditioners do not refrigerate are as follows:

1. Freon is not enough (commonly known as not enough refrigerant).

Solution: Supplementing refrigerant can solve the problem of air conditioning not refrigerating, most of the reasons for this non-refrigeration are in the air conditioning that has been used for three or four years, most of them are also a normal phenomenon, which belongs to the normal consumption of air conditioning refrigerant (that is, we often say freon or refrigerant) after long-term use, but this is only manifested as insufficient refrigeration of the air conditioner compared with the previous normal situation, and will not be completely uncooled.

Because the pressure is not enough, it will not be too far from the normal value, as long as you find a regular maintenance network to make up for it; Of course, there are also refrigerant leaks due to installation reasons or the machine itself, which is a common and relatively easy to find reason, and this kind of problem is relatively easy to deal with. Use a pressure gauge to check the pressure, if it is not enough, just add it.

2. The voltage of the power supply is not enough.

Solution: Maintain a normal supply voltage.

The power supply voltage is unstable, and it often fails to reach the normal voltage, especially during the peak of electricity consumption. The manifestation of this problem is: when the voltage is normal, the air conditioner is also normal, and when the voltage is unstable, it will affect the air conditioner when it is not cold.

3. The power of the air conditioner is not enough to refrigerate.

Solution: The cooling capacity required by the power space of the air conditioner wants to match, which is also one of the common reasons for not refrigerating, but there are many reasons for this non-refrigeration, small power air conditioning pipe large area of the room, and some although the air conditioning power and the room area seem to match.

However, due to the fact that the room is relatively unsealed (such as doors and windows are wide open, etc.), or there is a heat source in the room (such as a lot of computers), of course, the glass room is also one of the heat sources, like to solve this kind of problem, generally only from increasing the number of air conditioners (so that the actual required cooling area and the air conditioning power can govern the cooling area match).

change the conditions of the environment in which it will be used; Increase the airtightness of the use environment; Reduce the heating source in the environment where the air conditioner is used to solve the problem of non-cooling.

4. The air conditioner is not refrigerated due to the high temperature of the outside environment.

Solution: Change the environment in which the outdoor unit is used (remove the surrounding air from the high-temperature machine for easier circulation). This uncooled condition is common when our outdoor units are installed in a relatively enclosed space or when the temperature around the outdoor unit is too high.

For example, in order to look beautiful, some real estate units are installed in a hidden small space or even multiple outdoor units in a small space, so it is extremely easy to cause the heat emitted by the radiator to flow away due to the lack of air circulation in the small space where the outdoor unit is located, so that the air conditioner is not refrigerated.

There is a common saying that when the outdoor temperature exceeds 43 degrees, it is difficult for most air conditioners to transfer indoor heat to the outside through the radiator of the outdoor unit, which will also cause the air conditioner to not refrigerate.

How to adjust the Midea air conditioner if it is not cooled?

Due to the long service life, the refrigerant inside is insufficient, resulting in even if the internal and external units are running normally, the house is still hot into a "dog", and you can't feel a trace of coolness, but this is relatively easy to solve, just add some new refrigerant.

Why is the air conditioner not cold?

1. The compressor capacitor is in poor contact or damaged, resulting in the compressor not working normally.

2. If the remote control is in poor contact (for example, the battery of the remote control is insufficient and needs to be replaced, etc.) or the receiver of the air conditioner is poor, then the air conditioner will be turned on but not running normally, or sometimes working and sometimes striking.

3. If the control panel of the internal or external unit of the air conditioner fails, there will be a phenomenon that the air conditioner is turned on but does not move or you obviously let it go up and down, but it will give you a left and right movement, which is really a headache.

4. Once the resistance value of the indoor temperature sensing head changes, the outdoor unit of the air conditioner will not work normally, so the air conditioner will not refrigerate normally.

5. There is also a kind of failure that will occur in a few air conditioners, that is, the power supply of the air conditioner is reversed, but this generally occurs when the machine is installed, and the probability is very small, so you can rest assured.

Okay, how to adjust the air conditioner above for not cooling? The knowledge of the reasons why the air conditioner is not cold has been analyzed, just like the above question, the phenomenon of not cooling often appears, and there are many reasons, so it is necessary to check before use, determine the cause and then solve it, so as to spend the summer safely.

1. The freon in the air conditioner is not enough, which generally occurs in the air conditioner that has been used for more than one year. The freon function in the air conditioner is refrigeration, and if the air conditioner is used for a long time, the air conditioner will lack fluorine, and the external manifestations are not refrigeration, water leakage, shutdown, etc.

2. The air conditioner receiver is bad or the battery in the air conditioner remote control is dead, but you don't find it, then you turn it on, but it strikes, or sometimes it is refrigerated and sometimes it is not refrigerated.

3. When the voltage at home is unstable, it will directly affect the work of the air conditioner.

4. There is a dust filter in the air conditioner, which is to prevent the entry of dust and protect the air conditioner. Some customers have used the air conditioner for a long time, but they don't know how to clean it and maintain it, resulting in excessive dust accumulation, affecting the heat dissipation of the air conditioner, and it is difficult to refrigerate.

5. It's obviously turned on, but it doesn't move, or you let it wind left and right, but it goes up and down. This phenomenon is generally caused by the failure of the control panel of the internal and external units of the air conditioner.

1. Check whether it is the lack of freon, and if so, add a little freon to the air conditioner immediately. However, supplementing Freon requires professional staff, so remind everyone not to do it yourself.

2. Check whether the voltage at home is stable and whether the remote control of the air conditioner has electricity, and replace the battery with a new one if there is no power. If the voltage is not stable, we have to buy a voltage regulator to stabilize the voltage.

3. Regularly clean the indoor and outdoor units of the air conditioner. It is recommended that you buy a bottle of detergent specially designed to clean the filter, which can quickly dissolve the dust on it, rinse it and dry it.

Reasons why Midea's air conditioner is not cooling:

Midea air-conditioned city-wide repair office.

Adjust the room temperature carefully. When cooling, the room temperature is increased by 1 degree Celsius, and when heating, the room temperature is lowered by 2 degrees Celsius, which can save more than 10% of electricity. When the air conditioner is used, the temperature is set at 26 28 in summer and 16 18 in winter.

Clean the filter regularly. Dust will clog the filter mesh and reduce the effect of heating and cooling, so it should be cleaned once every half a month.

When the air conditioner is not in use, the power supply should be cut off.

There are many reasons why the air conditioner is not refrigerated: (1) fluorine leakage at the connecting pipe joint; (2) There is a leakage point in the connecting pipe; (3) The wiring is incorrect; (4), fuse burning; (5) The compressor fails; (6) The external environment temperature is high, and the indoor personnel are more than the United States' air conditioners working at full load. (7) If the power supply voltage is too low, it is not easy to start the Midea air conditioner, and it will stop or the fuse will blow after starting, so it is recommended that the user install a power regulator.

8) The air outlet of the air outlet is not large if the temperature does not drop in the strong cold block room, which is the air filter has too much dust, clean the filter. (9) Improper adjustment of the thermostat. (10) Midea air conditioning installation location is not good, it will lead to uneven indoor temperature or poor refrigeration effect, if the above can not be determined, please call Midea's after-sales service **4008899315 let it deal with it!

If you still have questions, you are welcome to ask questions to the company in the United States; I wish you a smooth work and a happy life!

Air conditioning is an indispensable part of modern life, air conditioning provides people with coolness, but at the same time, air conditioning is always on is also easy to cause diseases, such as "air conditioning disease", etc., need to be used with caution.

Air conditioner not cooling reasons:

1. There is no refrigerant for the compressor, add refrigerant.

3. If the refrigeration system line is faulty, check the line.

4. The thermostat is broken, replace the thermostat.

5. The temperature sensor is broken, replace the sensor.

Check whether the ambient temperature of the external unit is too high. China's air conditioner generally adopts the T1 working condition in the temperate climate environment, and the applicable ambient temperature is between -7 and -43, when the environment is out of range (such as the outdoor ground temperature can reach 60 when the high temperature in summer), the external radiator can not effectively dissipate heat, which will cause the air conditioner not to refrigerate. In addition to hot weather, this situation also often occurs when the outdoor unit is installed in an enclosed space, and the heat emitted by the outdoor unit accumulates in the enclosed space, resulting in too high a temperature in the space, which in turn causes the radiator to be unable to effectively dissipate heat.

If the air conditioner can be cooled normally when the temperature is low in the morning, but not when the temperature is high, it is likely that this is the reason, and you need to find a way to reduce the temperature of the external unit without adding fluoride.

Answer: The first one may be because the freon is not enough, and you only need to add a little bit to it. The second type of supply voltage is insufficient. The third type of air conditioner is not enough power, as long as it is 150-250w square meters when cooling.

It is also possible that the temperature difference between indoor and outdoor temperature is relatively large, it may be that the air conditioner has not been clean for a long time, and it may be that the copper pipe is too long.

3. The power of the air conditioner is not enough, if your indoor space is relatively large, the refrigeration speed of the air conditioner will be relatively slow, you need to pay attention to the choice of air conditioner, 150-250w square meters when refrigerating, 250-350w square meters when heating, in addition, it is also necessary to comprehensively consider factors such as space height, level orientation, sealing performance and residential population;

4. It is also possible that the external ambient temperature is too high, if the temperature difference between indoor and outdoor is relatively large, the refrigeration efficiency of the outdoor unit will be relatively low, so the refrigeration efficiency will be slow or even unable to refrigerate;

5. If the air conditioner is not cleaned and maintained for a long time, the effect of the radiator will be affected due to dust accumulation and other reasons, resulting in the reduction of the refrigeration effect of the air conditioner. If the indoor unit is not cleaned for a long time, it will also be related to the health of the human body, and if it is not cleaned for a long time, bacteria will breed and pollute the air;

6. The copper pipe connecting the indoor unit and the outdoor unit is too long, and the maximum allowable length of the connecting pipe of the general air conditioner shall not exceed 8 meters for one horse, 10 meters for the longest horse, and 15 meters for more than 2 horses. The height difference between indoor and outdoor units shall not exceed 5 meters.

Generally speaking, there are the following reasons why Midea air conditioners do not refrigerate: First, there are loopholes in the compressor circulation system and light leakage of internal coolant. Second, the power supply system used by the compressor circulation system was cut off, causing the circulation compression system to stop working. Third, the compressor is damaged.

If the air conditioner is used for a long time, first check whether the compressor lacks freon or the starting capacitance capacity of the outdoor unit is reduced and cannot be started normally, and there is no refrigeration, of course, it is also possible that the filter screen of the indoor unit is dirty and the refrigeration effect is not good.

The most common is the lack of refrigerant in the system, and the insufficient working pressure of the system leads to poor refrigeration effect and no refrigeration. The internal filter screen is seriously dirty, the outdoor unit has poor heat dissipation, and the compressor starting capacitor is broken, resulting in the compressor being unable to start and run normally, resulting in no refrigeration. The second is that the control failure of the motherboard causes the air conditioner to not work normally, affecting the refrigeration.

The reasons why the air conditioner does not refrigerate are divided into three parts, first, the compressor is damaged! Second, the control board is damaged! Third, lack of refrigerant! Not refrigeration, nothing more than these three reasons.