Why does the temperature of an air conditioner go up and down?

The air conditioner came out at 33°, then dropped to 30°C and then went back up to 33. This is normal, the air conditioner is not broken.

This is how he works over and over again, if you feel that the temperature is too high, you can set the temperature to about 28 degrees, when the temperature drops to about 28 degrees, the air conditioner will stop working, and when the temperature rises to 1 2 degrees, the air conditioner will continue to work.

It is normal for the exhaust gas outside to be hot, but if it is cold, it is the opposite, and the exhaust is cold.

In fact, the outdoor unit of the air conditioner is suspended and installed, except for the ground wire of the power supply, there is no other point that can be grounded. Therefore, disconnecting the ground wire is equivalent to eliminating the root cause of the problem! So even if more water is dripped into it, as long as the neutral line of the live wire is not short-circuited, it will never trip.

When the ambient conditions are temperature 25, relative humidity 50, and air velocity meters and seconds, the human body is in the most normal and ideal state of thermal equilibrium, that is, it feels the most comfortable and responds the best.

In fact, the effective temperature felt by the human body is correspondingly slightly lower than the temperature of the indoor air, generally about 1 2 lower, that is, although the air supply temperature of the air conditioner is slightly higher, but the temperature actually felt by the human body is not so high. Therefore, the control temperature of the air conditioner is adjusted to 26 28, and the human body will feel more comfortable at this time.

Don't worry too much about this situation, this is the self-protection mechanism of the air conditioner. It could be due to the following reasons:

1.The self-protection mechanism of the air conditioner. If the heating temperature of the air conditioner is high, then when the outdoor ambient temperature is too low in winter, the air conditioner will not get the heating temperature of the air conditioner you set, which is to protect the air conditioner to work efficiently and reasonably, so the air conditioner will automatically reduce the setting of the high temperature set artificially.

2.In addition, the temperature sensor may be faulty, causing the detected temperature to be abnormal, resulting in an incorrect temperature display.

Generally speaking, the temperature of the air conditioner in winter is set at 15-18 optimally, which not only ensures the normal operation of the air conditioner, but also saves energy and protects the environment.

This is normal. When the air conditioner is working, the room is cooled, and when the temperature drops to the set refrigeration temperature, the compressor is shut down and no longer cools. The indoor temperature rises.

When the temperature rises to the start-up temperature, the compressor works, the system refrigerates again, and the temperature drops. This repeats itself, and the temperature changes within a certain range.

It's possible that your voltage is unstable.

Wash the dust plate in the air conditioner to see if it is blocked, in most cases, the air conditioner is old, and the conversion efficiency of freon is low.

Is there a change in temperature? If not, it is broken or fluoride needs to be added, and if not, it may be that the transmitter head of the remote control is broken.

It should be the refrigerant leakage that caused the cooling effect to decrease. Find an after-sales or air conditioner repairer to refrigerate.

The higher the hotter. The higher the temperature of the air conditioner, the warmer it will be, and it will be more energy-efficient, and it is very appropriate to keep the temperature of the air conditioner at about 20 degrees to 25 degrees in winter, this temperature will give people a very comfortable feeling, and also avoid too much power consumption of the air conditioner.

The minimum setting temperature of the air conditioner for daily use is 16 degrees Celsius. Zhishan

Adjusting the minimum set temperature does not mean the minimum temperature that the air conditioner can refrigerate, which means that you set the air conditioner temperature at 16 degrees, if the air conditioner is located in a space that is too large, or that space has too many heat sources, even if the air conditioner is running at full load for 24 hours without stopping, it will not be able to reduce the room temperature to its set minimum temperature of 16 degrees, of course, it is impossible to lower it than 16 degrees.

If the power of the air conditioner is large enough to quickly reduce the room temperature to the set 16 degrees, because of the temperature control principle of the air conditioner, when the room temperature reaches its set temperature, it will stop and not continue to refrigerate, so from the perspective of air conditioning temperature control, the minimum temperature that the air conditioner can reach is the minimum temperature it sets.

Heating principle

The compressor sucks in the low-pressure gas and compresses it into high-temperature and high-pressure gas through the compressor, and the high-temperature gas increases the water temperature through the heat exchanger, and the high-temperature gas will condense into liquid, and the liquid enters the evaporator for evaporation, and the liquid becomes low-pressure low-pressure low-temperature gas after passing through the evaporator, and the low-temperature gas is sucked in by the compressor again for compression.

In this way, the circulating water on the air conditioning side becomes hot water of about 45-55 degrees, and the hot water is sent to the room that needs to be heated through the pipe draft, and the room is equipped with a fan coil unit to exchange hot water and air to achieve the purpose of heating.

The birth of air conditioning is simply a big step in the history of human civilization. Warm in winter and cool in summer, we can not be controlled by nature, and we can also control the temperature ourselves. In the scorching heat, the first thing we do when we go home is to turn on the air conditioner, set the temperature to the lowest, and then take out a cold drink from the refrigerator to cool ourselves down, so is the temperature of the air conditioner really as low as possible?

In fact, it is not the case, the difference between indoor and outdoor temperature is too large, which is not good for people to swim up. Today, let's take a look at whether the temperature of the air conditioner is colder and colder the cooler?

The working principle of air conditioner must not be elaborated, but the principle of excretion of heat during liquefaction (from gas to liquid) and absorption of heat during vaporization (from liquid to gas) learned in junior high school physics. The compressor compresses the gaseous refrigerant into 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.

28 on 16 hours is more power-efficient than 24 on 8 hours

Generally speaking, air conditioners are divided into two working states: the refrigeration state when the compressor is running and the blowing state when the compressor is not running. The former consumes much more power per unit of time than the latter (or even more than 2 times).

Therefore, if you set the temperature very low, because you have to keep a large temperature difference between indoor and outdoor, so the compressor keeps working, then it consumes more electricity;

If the set temperature is high, the compressor may run for a shorter time (small temperature difference between indoor and outdoor), which may result in more power saving results from 28 hours for 16 hours than for 24 hours for 8 hours.

Now it is generally an inverter air conditioner, when the indoor temperature gradually drops to the set temperature, the air conditioner also gradually reduces the speed, that is, it does not shut down to maintain a constant temperature, the farther away from the set temperature value, the greater the power; The closer it is, the lower the power. For non-inverter air conditioners, the set temperature is only a temperature threshold to stop cooling. When the temperature drops to the set point, stop working.

To put it simply, the closer to the room temperature, the less you need to change the temperature, the less effort you need, the less electricity you use.

The lower the temperature of the air conditioner, the colder the concept is not right, the air conditioner is the use of the physical change of the refrigerant to change the temperature, the lower the temperature of the air conditioner, the more power will be consumed, but the indoor temperature will not change too much. The air conditioner is set to the lowest temperature in summer, and the air conditioner will work at maximum power, but it is impossible to reach the minimum temperature, it will continue to run at maximum power, which consumes a lot of electricity, and the most comfortable temperature for our human body is 26 degrees, and the difference between indoor and outdoor temperature is too large, which will be bad for our health. We should not set the temperature of the air conditioner too low, and adjust the temperature scientifically to achieve the best effect.

You can get it for free

1) Check whether the working mode is set correctly; Be sure to set it to "refrigeration" mode, and you can't make a mistake.

2) Check whether the set temperature is correct; Start by setting the temperature a little lower, for example at 18 degrees.

3) Check whether the indoor fan is normal; Is the airflow controlled? Is the filter cleaned? Try replacing the remote control battery again.

4) See if the outdoor unit is working normally: 1Is the cooling fan turning? 2.Has the compressor been started?

If the previous steps are normal, but: 1If the compressor is working but not refrigerating, it may be that the refrigerant is leaking and the refrigerant needs to be added; 2.

If the compressor is not working, it is possible that the protection circuit is operating (this usually occurs when the first start of the summer) 3.If you don't turn on the machine for the first time in summer, you should also pay attention to whether there will be rats biting the cables of the outdoor unit?

It may be because the ambient temperature is too high, or it may be because the refrigerant of the air conditioner is insufficient, resulting in the refrigeration effect of the air conditioner is not obvious!

If the air conditioner is not cooled, first consider the lack of refrigerant, first fill up the refrigerant, if it is still not cold, let the air conditioner master check the motor in the air conditioner, etc.

You may need to take out the filter to clean it, there may be too much dust, and the air conditioner has been used for many years, and the potion in it has dried up, and you need to call a professional maintenance master to add the potion.

That may be the quality of the air conditioner itself.

It is most likely that there is a lack of fluoride.

Summary. One of the reasons why the air conditioner does not refrigerate: there is not enough freon (commonly known as "refrigerant" is not enough).

The second reason why the air conditioner does not refrigerate: the power supply voltage is not enough.

The third reason why the air conditioner does not refrigerate: the power of the air conditioner is not enough.

The fourth reason why the air conditioner does not refrigerate: the external ambient temperature is too high.

There is a common saying: when the outdoor unit is in an environment above 43°, most air conditioners are difficult to transfer the heat from the indoor to the outside, resulting in no refrigeration.

The fifth reason why the air conditioner is not refrigerated: the air conditioner is not cleaned and maintained for a long time.

If you want the air conditioner to operate normally and not affect human health, but also to prolong the life as much as possible, obviously, it is impossible to leave it alone as soon as you buy it and install it. Because the outdoor unit is exposed to the outdoors, it is easy to absorb dust and debris, and if it is not cleaned for a long time, it will affect the heat dissipation performance of the machine, resulting in the reduction of the cooling effect of the air conditioner. The indoor unit is related to the health of the human body, and if it is not cleaned for a long time, it will breed bacteria, pollute the air, and make people sick.

Reason 6 for the air conditioner not to refrigerate: The copper pipe connecting the indoor unit and the outdoor unit is too long.

Why can't the temperature of the air conditioner be turned down?

One of the reasons why the air conditioner is not refrigerated: Freon is not enough (commonly known as "refrigerant" is not enough) The second reason why the air conditioner is not refrigerated: The power supply voltage is not enough to open the stove The third reason why the air conditioner is not refrigerated

The power of the air conditioner is not enough to air conditioning and the fourth reason for not refrigerating: the external environment temperature is too highThere is a common saying: when the outdoor unit is in an environment above 43 °, it is difficult for most air conditioners to transfer the heat from the indoor to the outside, resulting in no refrigeration.

The fifth reason why the air conditioner is not refrigerated: the air conditioner is not cleaned and maintained for a long time, and the air conditioner can operate normally, and does not affect human health, and the life of the people should be extended as much as possible. Because the outdoor unit is exposed to the outdoors, it is easy to absorb dust and debris, and if it is not cleaned for a long time, it will affect the heat dissipation performance of the machine, resulting in the reduction of the cooling effect of the air conditioner.

The indoor unit is related to the health of the human body, and if it is not cleaned for a long time, it will breed bacteria, pollute the air, and make people sick. Reason 6 for the air conditioner not to refrigerate: The copper pipe connecting the indoor unit and the outdoor unit is too long.

It's not that it's not cooling, but when it's 30 degrees Celsius, the host stops running outside, and the temperature is set at 27 degrees. The difference is less than 1 degree, and the host is running again.

And what about you turn down the temperature, is that the same? Right.