The air conditioner was used well, and suddenly it was not cooled why

1.The air conditioner was turned on for half an hour, and when I opened the panel of the indoor unit, I could clearly see that the evaporator was covered with condensate. If there is no possibility of frost or ice in half of the place, it means that the air conditioner is in a state of fluoride deficiency in the area, and it should also be noted that during the operation of the air conditioner, if the lights are on for a while and the lights are off for a while, it also means that the air conditioner is seriously deficient in fluoride.

2.If you have a thermometer at home, you can use it at the air outlet of the air conditioner to measure the temperature difference. If the difference is more than 10 degrees, it means that the air conditioner is operating normally.

However, if the temperature difference of the air conditioner is about 15 degrees, then the temperature is too low and it is a sign of fluoride deficiency. 3.In addition to the indoor unit, the air conditioner also has an outdoor unit.

When we test the outdoor unit, we should touch the two valves of the outdoor unit with our hands after the air conditioner is turned on for fifteen minutes. The resulting temperature difference is relatively large. Frosting in the thin tube indicates a lack of fluorine in the air conditioner, and frosting in the vinegar tube indicates poor circulation in the system.

The second is that the air conditioner is not refrigerated, which can be easily solved with only 3 strokes. 1.Although today's air conditioners have heating and cooling functions, some family air conditioners still only have cold air and no hot air.

Every winter, the air conditioner is put on hold until the following summer, so all we need to do is maintain the air conditioner. If the air conditioner is not cleaned and maintained for a long time, a large amount of dust will accumulate on the filter, fan blades, and wind wheel inside the air conditioner, which will eventually lead to a decrease in the temperature of the air conditioner's air outlet. So to remind everyone, the air conditioning definitely is.

2.In summer, the outdoor temperature is relatively high, so it will also cause the temperature of the condenser of the outdoor unit of the air conditioner to rise. If the temperature exceeds the heat emitted by the condenser, then the air conditioner will not work properly.

Watering and shading can make the outdoor unit achieve a good cooling effect. If you turn on the air conditioner at night, the cooling effect will be very good, and there is no need for urgent warranty. 3.

When buying an air conditioner, you will always pay attention to the number of air conditioners. At this time, you have to pay attention. The number of air conditioners must match the size of your home, and there is a direct relationship between the two.

The number of air conditioners is small, the air conditioners are slow to refrigerate, and the number of air conditioners is large, but it is a waste of money. So you need to fully understand the size of your room and choose the most suitable air conditioner.

There are several situations to consider, the compressor will inevitably shut down when there is no refrigeration, and occasionally refrigeration indicates the presence of ammonia.

1. Whether the temperature sensing head of the indoor unit is moved, resulting in insensitive temperature feeling. And the refrigeration is not normal.

2. Whether the air conditioner is too dirty, resulting in the compressor protection not working.

3. Whether the computer board of the internal machine is damaged, resulting in control disorder.

4. The external capacitor is damaged. E4 is the fault of the compressor exhaust sensing head.

For details, please call us or make an appointment for maintenance.

1) The external machine is not too dusty, you can purge or rinse with water to add cleaning agent, (2) there is no fluorine will also have such a reason, (3) the indoor unit air duct will also lead to water and some cleaning agents such as cleaning electrical appliances, (4) if it does not work, you must ask professional maintenance personnel

There are several reasons why the air conditioner only emits air and does not refrigerate:

1. The controller does not set the refrigeration state or the set temperature is too high;

2. The power supply voltage of the air conditioner host is not enough to cause the host to fail to start;

3. If the refrigerant of the air-conditioning host is not connected to the bell during installation, resulting in light leakage, or the copper pipe pipeline is not connected well or the copper pipe is broken, of course, it is not excluded that the copper pipe of the host itself is broken, such as: the evaporator, the condenser or the pipeline connection of the unit itself;

Fourth, the compressor of the main engine of the air conditioner is burned out.

Solution: Call a professional air-conditioning maintenance personnel.

1. Reason: The temperature difference between the air supply and return air (indoor temperature) of the air conditioner under normal operation should be more than 8, if it cannot be reached, it means that the refrigeration capacity of the air conditioner is not enough, and the cause should be identified. The common causes may be:

1) The refrigeration load is overloaded or the room is too large.

2) The installation site is inappropriate, the airflow circulation is not sufficient, etc.

2. Solution:

1) First of all, find out whether it is caused by the overload of the air conditioner refrigeration load of the air conditioner, and try to reduce the refrigeration load or increase the cooling capacity of the air conditioner.

2) Then look at whether the air conditioner of the air conditioner is properly installed, if it is not suitable, the cold air will not blow around the person, so that the person does not feel cold. When the airflow circulation of the air conditioner is not smooth, such as the evaporator has a lot of ash, the gap between the fins is blocked, or the air filter is blocked by dust, the circulating air is reduced, and the cooling capacity of the air conditioner of the air conditioner can not be fully utilized.

For details, please call us or make an appointment for maintenance.

It should be that the four-way reversing on the air conditioner is broken.

Turn on the external unit and tap it lightly.

Haven't reset yet. It's just that it's broken.

of finding someone to change.

It may be the compressor overheating protection caused by the lack of fluorine, or find someone to fix it.

1) The external machine is not too dusty, you can purge or rinse with water to add cleaning agent, (2) there is no fluorine will also have such a reason, (3) the indoor unit air duct will also lead to water and some cleaning agents such as cleaning electrical appliances, (4) if it does not work, you must ask professional maintenance personnel

The external machine does not turn has nothing to do with the lack of fluoride, and the upstairs should not mislead people's children.

Generally, the compressor is stuck or the thermostat is broken and does not start.

Broken! Go straight to the maintenance department! If there is no warranty period, send it to the after-sales service as soon as possible! Don't delay, the longer it takes, the worse the secondary damage will be!

After a few shots, it turned, indicating that the external unit has poor contact, and the external unit should be opened to check, and then see if the compressor rotates and whether the starting capacitor is broken. or fluoride leakage.

1. Insufficient freon: The sudden failure of the air conditioner to refrigerate is generally caused by insufficient freon. Because the air conditioner in the process of refrigeration, generally use Freon for refrigeration, and once the use time of Freon is more than three years or so, Freon will be volatilized, once the Freon is not enough, then it will naturally lead to the phenomenon of the air conditioner suddenly not cooling.

At this time, just ask a professional maintenance person to come to help add some freon. 2. The air conditioner is not cleaned and maintained for a long time: the air conditioner suddenly does not refrigerate or may be caused by the air conditioner not being cleaned for a long time, and the air conditioner is used for a long time, and it is easy to accumulate a lot of dust, garbage, etc. on the radiator, which is prone to poor heat dissipation effect, resulting in the air conditioner not being refrigerated or having poor refrigeration effect.

3. Insufficient power supply voltage: The sudden failure of the air conditioner to cool may also be caused by insufficient indoor power supply voltage. If the air conditioner is to start normally, then the power supply voltage needs to reach at least 220 volts, if the power supply voltage is not enough, it will cause the air conditioner to fail to start normally, then the air conditioner will naturally not be able to refrigerate.

4. High external ambient temperature: The sudden failure of the air conditioner to refrigerate may also be caused by the high temperature of the external environment of the air conditioner. When the temperature of the external environment exceeds 33 degrees, and the indoor population is large, the cooling load of the air conditioner will increase, which will lead to a decrease in the cooling capacity of the air conditioner, resulting in the indoor temperature can not be cold.

The voltage is too low for compressor protection.

1. Lack of Leon (commonly known as fluoride deficiency): Most of the reasons for this non-refrigeration are the air conditioners that have been used for three or four years, and 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 compared with the previous normal situation, and will not be completely uncooled.

2. The voltage of the power supply is not enough: it is more likely to occur this phenomenon. The manifestation of this problem is: when the voltage is normal, the air conditioning and refrigeration are also normal, and when the voltage is unstable, it will affect the air conditioner sometimes not to cool (the internal unit works, the compressor does not work).

3. The power of the air conditioner is not enough: this is also one of the reasons for a common non-refrigeration (poor refrigeration effect), but there are many reasons for this non-refrigeration, such as a small power air conditioning pipe with a large area of the room, and some although the air conditioning power and the room area seem to match, but because 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 computer), of course, the glass room is also one of the heat sources, etc.

4. The external environment temperature is too high: This kind of uncooling situation is common when our outdoor unit is installed in a relatively closed space or the temperature around the outdoor unit is too high. For example, in order to look beautiful, the outdoor unit is installed in a hidden small space or even a number of outdoor units in a small space, so that 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, most air conditioners are difficult to transfer the indoor heat to the outdoors through the radiator of the outdoor unit, and even cause high-voltage protection. This will also cause the air conditioner to not refrigerate.

5. The air conditioner is not cleaned and maintained for a long time.

The air conditioner is blowing well and suddenly does not refrigerate, first of all, you need to confirm that the air conditioner is indeed operating normally, and there is no problem in other aspects. If the operation is normal, this phenomenon may have the following reasons: the compressor does not start, it may be that the compressor terminal pile is burned, the starting capacitor capacity is reduced, and the connection line between the internal and external machine is broken.

There could be several reasons for this:

1.Air conditioner filters need to be cleaned or replaced. If the filter is clogged, the air flow will be restricted, causing the air conditioner to not cool.

2.The air conditioner condenser needs to be cleaned. If there is dust or dirt on the condenser, it will not be able to absorb heat effectively, which will affect the refrigeration effect.

3.The air conditioner is not sufficient. If the refrigerant of the air conditioner is insufficient, it will not be able to absorb and release heat as a cracking effect, resulting in the air conditioner not cooling.

4.The air conditioner compressor is faulty. If the air conditioning compressor fails, it will not be able to compress the refrigerant into a high-pressure gas, which will affect the refrigeration effect.

5.Faulty electronic controller of the air conditioner. If the electronic controller of the air conditioner fails, it will not be able to control the cooling and closed heating functions of the air conditioner, resulting in the air conditioner not cooling.

If your air conditioner suddenly stops cooling, it is recommended that you contact a professional air conditioner maintenance personnel for inspection and repair.

There could be several reasons for this:

1.The air conditioner filter needs to be cleaned or replaced. If the aircon filter is clogged with dust and dirt, the air flow will be restricted, causing the aircon to not cool.

2.The air conditioner condenser needs to be cleaned. If there is dust and dirt on the condenser of the air conditioner, it will affect the cooling effect of the air conditioner.

3.The air conditioner refrigerant is insufficient. If the air conditioner does not have enough refrigerant, it will not be able to cool effectively.

4.The air conditioner compressor is faulty. If the air conditioning compressor fails, it will not be able to compress the refrigerant into high-pressure gas, and Shannai will not be able to refrigerate.

5.The air conditioner circuit is faulty. If the air conditioning circuit fails, it will not function properly and thus it will not be able to refrigerate.

If your air conditioner suddenly stops cooling, it is recommended that you contact a professional air conditioner maintenance personnel for inspection and repair.