Why does my air conditioner have a good cooling effect but a poor heating effect?

We all know that if the air conditioner filter is not cleaned regularly, it will affect the cooling effect, and the same is true for heating, so if you haven't cleaned the filter for a long time, you only need to remove the filter and clean it before installing it, and you can heat it normally.

If the outdoor temperature is too low, it will also affect the heating effect of the air conditioner. The lower the outdoor temperature, the worse the heating effect of the air conditioner, that is, the actual heating is not enough.

When the outside temperature drops below freezing, the outdoor unit of the air conditioner will be frosty. At this time, when the air conditioner is turned on, it takes about 8-12 minutes to "defrost", and the air conditioner will not blow hot air during this time, and I believe that many friends will mistakenly think that the heating effect of the air conditioner is not ideal. As long as the defrosting is completed, the air conditioner will heat up normally.

If the applicable area of the air conditioner heating and the actual area of the room where the air conditioner is actually used are not well calculated when purchasing the air conditioner, resulting in the room temperature not rising ideally, that is, the amount of customized heat is not enough, you should find a way to reduce the room area by dividing the room, or turn on the auxiliary electric heating, and use the heater or heater at the same time.

If the nut at the copper horn is not tightened during the installation of your own air conditioner, or the machine has been moved, it may cause the leakage of freon, resulting in poor heating effect. At this time, it is necessary to ask professional maintenance personnel to come to check and repair, and add freon.

Air conditioning refrigeration. After the air conditioner is energized, the low-pressure steam of the refrigerant in the refrigeration system is sucked in by the compressor and compressed into high-temperature and high-pressure steam and discharged to the condenser (heat dissipation). At the same time, the outdoor air drawn in by the axial fan flows through the condenser, taking away the heat released by the refrigerant, and condensing the high-temperature and high-pressure refrigerant vapor into high-pressure liquid.

The high-pressure liquid is sprayed into the evaporator after passing through the filter and throttling mechanism (capillary), and evaporates at the corresponding low pressure (expansion and endothermy) to absorb the surrounding heat. At the same time, the cross-flow fan continuously enters the ribs of the evaporator for heat exchange, and sends the cooled air to the room after heat release. In this way, the indoor air is constantly circulating and flowing to achieve the purpose of reducing the temperature.

Heating. Heat pump heating is the use of a compressed condenser in a refrigeration system to heat indoor air. When the air conditioner is working in refrigeration, the low-pressure refrigerant liquid evaporates and absorbs heat in the evaporator, while the high-temperature and high-pressure refrigerant is heated and condensed in the condenser.

Heat pump heating is to reverse the position of the suction and exhaust pipes of the refrigeration system through electromagnetic commutation. The indoor coil of the original refrigeration evaporator becomes a condenser during heating, so that the refrigeration system absorbs heat from the outside and releases heat from the interior to achieve the purpose of heating.

The conversion of cooling and heating is achieved by means of a "four-way valve". Under the condition of refrigeration, the compressor sucks in low-temperature and low-pressure gas, which is compressed into a saturated gas at high temperature and high pressure and sent to the condenser (heat exchanger); The saturated gas at high temperature and high pressure is cooled in the condenser to keep the pressure unchanged and release heat to the outside, thus condensing into a liquid at low temperature and high pressure; It is discharged from the condenser and passes through the refrigeration throttle element (usually a throttle valve or capillary), and the pressure drops due to obstruction, causing part of the refrigerant liquid to become a gas, and at the same time absorbing the latent heat of gasification, so that its own temperature is also reduced, becoming a wet vapor at low temperature and low pressure; Entering the evaporator (indoor unit in the figure), in the evaporator, the refrigerant liquid absorbs the heat in the air under the condition that the pressure remains unchanged, so that the surrounding air becomes cold, and at the same time, the cooling air is blown into the room through the fan to achieve the effect of refrigeration in the room. The heating state is actually to convert the flow direction of the refrigerant through the four-way valve, so that the original evaporator becomes a condenser, and the original condenser becomes an evaporator.

The principle is still the same.

Due to the structure of the air conditioner, the heating energy efficiency ratio of the air conditioner.

It is lower than the refrigeration energy efficiency ratio, that is to say, the efficiency of air conditioning heating is lower when the input power is constant. Liquid freon.

After the throttling device is depressurized, it enters the heat exchanger of the outdoor unit (in this case, it is an evaporator, and the evaporation vaporizes and absorbs heat to become a gas, and at the same time absorbs the heat of the outdoor air (the outdoor air becomes colder). Freon, which becomes a gas, enters the compressor again to start the next cycle.

<> can eliminate the diffused heat by evaporating the moisture of the wet towel, and the moisture contained in the towel can be kept moist, which can solve the problem of poor heat dissipation of the outdoor unit, improve or completely solve the problem of indoor cooling efficiency, and let the indoor can be quickly cooled down. Too much or too little freon in the air conditioner, too little freon, the external unit can't reach a certain pressure, and the air conditioning pipeline will not be hot! Check the fluoride leakage point and replenish the freon!

Too much freon and too much pressure on the external machine will also affect the heating effect, and the excess freon can be released.

When the air conditioner is heating, be sure to turn on the auxiliary heating function at the same time, if you want to speed up the heating speed, you can turn on the heater and heater at the same time. If the cooling and heating effect of the air conditioner is not good, it may be that there are more things on the surface of the radiator (water tank), or the heater motor is aging and hairpin. The refrigerant is filtered out through a filter.

The moisture and impurities in it, and then throttle and depressurize through the capillary, and send the low-temperature mortgaged gas into the evaporator of the indoor unit, and blow it out through the internal fan, so that we feel the cold air.

The outside temperature is too low due to the physical properties of the refrigerant.

It is decided that the closer the temperature is to the liquefaction temperature, especially below 0 degrees, it is obvious that the heating performance of the air conditioner will decay. If there is too much fluorine, the refrigeration will be abnormal, if the refrigeration is normal, it proves that the fluorine is basically suitable, and the specific professionals should test the operating current and pressure of the air conditioner. This is a fixed-frequency air conditioner.

A downside! Temperature-based! You set 24 degrees, then the compressor will stop after the air conditioner reaches 24 degrees, only the fan will run idle, and when the temperature rises above 24 degrees, the compressor will start working again.

Air conditioning, cooling and heating are two very different modes. The principle of the two is completely different, and the compressor of the air conditioner is not used for heating. So even if the air conditioner has a poor cooling effect, there is no problem with heating.

Hello, the main reasons why the air conditioner does not heat the refrigeration are: 1. The air filter in the air conditioner is mainly used to absorb the dust in the air. It is easy to block the air filter, and the air filter circulation is not smooth during the operating period, which will cause the air outlet of the air conditioner to be reduced, resulting in the air used for heating can not be brought out in time, affecting the heating of the air conditioner.

Excessive dust accumulation in the air filter of the air conditioner, or blockage by foreign objects will affect the heating of the air conditioner. 2. Fluorine deficiency is one of the most common factors affecting air conditioning refrigeration and heating. Both types of air conditioners need to absorb heat from the outside air when they evaporate through freon, and when the room temperature is low, the temperature difference between them and freon evaporation is very small, which will affect the heating effect of the air conditioner.

If you use an old air conditioner, after a long period of use, the compressor will be weakened after years of wear and tear, and when the indoor temperature is at 0, it will also affect the heating of the air conditioner. 3. In the air conditioner with a lot of electric auxiliary functions, if there is no electric auxiliary heating function, then the heating of the air conditioner will also be affected. 4. If the outdoor temperature is too low, the heating of the air conditioner will also absorb the outdoor temperature, so if the outdoor temperature is too low, it will also discount the heating effect of the air conditioner.

The outside unit of the air conditioner will not work normally at -15, and if you want to turn it on, you need to turn it on for 8 12 minutes for defrosting.

Questions. The refrigeration effect is very good, no heating, and the air filter has just been cleaned for a few days.

It is possible that the outside temperature is too low, and the air conditioner will also absorb the outdoor temperature.

Questions. The outside temperature is more than 10 degrees.

Then you can turn on the electric auxiliary heat, or turn the wind speed up to make the heating faster.

It is because your air conditioner lacks fluorine, and the air conditioner will only be cooled if the fluorine is sufficient enough, and the effect is very good, so you should fluoride the air conditioner in time.

Because there is a certain quality problem with the air conditioner, it is likely that there is a continuous operation in the process of use, so it should be sent for maintenance.

It is very likely that its refrigeration design is not particularly perfect, the function is not very good, and the quality of the air conditioner is not good.

It may be that there is a lack of fluorine, you can call the after-sales service of the brand and find them to deal with it.

It may be that the air conditioner lacks refrigerant, and it is recommended that you find a professional maintenance master to check it on your home to completely solve the problem.

The weather is so hot, what air conditioner has a better cooling effect.

Gree, Midea, Haigaijuer, Oaks and other air conditioners have good refrigeration effects. 1. The refrigeration capacity of air conditioning is an important parameter that reflects the refrigeration capacity of air object elimination, and is the basis for the selection of air conditioning, household air conditioning is generally selected according to the refrigeration capacity of 120-150w square meters, and the room is west to the sun, and the heat insulation and sealing are poor, and it can also be appropriately increased, but generally does not need to exceed 200w square meters. For example, a bedroom of 20 square meters, no sunlight, sealed and insulated, choose 26 (cooling capacity 2600w);If the sealing and thermal insulation are slightly poor, you can choose the 30 type;If the West Sunshine and the seal insulation are not good, you can choose to wait for the regulator to be energized, the low-pressure steam of the refrigerant in the refrigeration system is sucked into the compressor, compressed into high-pressure steam, and then enters the condenser.

At the same time, the outdoor air drawn in by the axial fan flows through the condenser, taking away the heat released by the refrigerant and condensing the high-pressure refrigerant vapor into a high-pressure liquid. After heat exchange with outdoor air, it becomes a medium-temperature medium-pressed refrigerant liquid. After throttling and decompression, it is cooled in a capillary tube and enters the evaporator, where it evaporates at the corresponding low pressure to absorb the surrounding heat.

At the same time, the cross-flow fan continuously enters the evaporator fins for heat exchange, and sends the exothermic cold air to the room. In this way, the indoor air is constantly circulating and flowing to achieve the purpose of cooling.

There are many reasons why an air conditioner is not cooling. First of all, the use of problems, such as whether the remote control is working properly and whether the function settings are correct, are eliminated. Then the cover rot determines which part of the machine is broken.

For example, the internal and external units are not working, and the control part is normal, if the machine is running normally but not refrigerating, then it is suspected that it is a refrigerant problem. Judging from your statement, there is no condensate discharge from the indoor unit, probably no refrigeration. The temperature of the external unit pipeline is low, and there is still refrigerant.

If you do not unplug the power cord for a long time, you may damage the control circuit of the machine. Based on these circumstances, the cause of the failure cannot be determined immediately, or it is still inspected by the maintenance department of the repair manufacturer.

The air conditioner has normal refrigeration, but the heating effect is very poor, and the internal temperature sensor has a high probability of damage. Of course, there are other reasons, such as a lack of fluoride in the air conditioner, or unstable voltage, which can cause the air conditioner to not heat or not work well. The cooling and heating effect of the air conditioner is likely to be the damage rate of the internal heat exchanger coil temperature sensor, and even if it is not damaged, it detects a relatively high failure rate.

Therefore, when the air conditioner has the above faults, you can check the sensor problem first and replace it. If it's not a problem with the sensor, then the detection of other problems can be carried out. Of course, poor contact of air conditioner joints is also one of the causes of many failures.

Fluoride deficiency is also a common problem. After the air conditioner works for a period of time, the refrigeration effect is not good, the three pressures of the air conditioner should be measured, the refrigeration should be balanced pressure and low pressure measurement, and the heating should be balanced pressure and high pressure pressure measurement. Of course, voltage issues are also prominent, especially during peak demand.

The focus of the air conditioner power supply inspection is whether the contacts are ablative, the contacts are not good, whether the internal contacts of the main power switch are good, whether the current resistance is satisfied, and whether the voltage is lower than the standard voltage. In addition, it may be a pressure protection problem, and it is not good to dissipate heat outdoors when it cools down in summer. Compressor overload protection is common in summer when there is high temperature and peak power consumption.

The remote control receiver and display board circuitry is also the best choice for a variety of faults, voltage measurements, and alternatives, and is suitable for harsh environments. It is recommended that you find a professional to repair the air conditioner in time after the problem occurs, and do not mess around.

Summary. Hello, the air conditioner has good heating and poor refrigeration, and the situation is as follows:

1. Too little refrigerant (freon) of air conditioning or leakage, resulting in insufficient working pressure of air conditioning, resulting in poor refrigeration effect of air conditioning.

2. The air conditioning filter has not removed the dust for a long time, and the dust blocks the filter, resulting in a decrease in the circulating air volume, that is, the amount of cold air blown out is not enough, and the refrigeration effect is poor.

3. The room is too large, the air conditioner used is too small, and the applicable area of the air conditioner refrigeration capacity is smaller than the area of the room where the air conditioner is used, which will also cause poor refrigeration effect.

4. The installation of air conditioning is unreasonable, the ventilation pipe is too long, and the heat transfer efficiency is low, resulting in no refrigeration.

The air conditioner has good heating and poor cooling.

Hello The poor refrigeration of air conditioning heating is as follows: 1. The air conditioning Qi Pei refrigerant (freon) is too little or leaks, resulting in insufficient working pressure of the air conditioner, resulting in poor refrigeration effect of the air conditioner. 2. The air conditioning filter has not removed the dust for a long time, and the dust blocks the filter, resulting in a decrease in the circulating air volume, that is, the amount of cold air blown out is not enough, and the refrigeration effect is poor.

3. The room is too large, the air conditioner used is too small, and the applicable area of the air conditioner refrigeration capacity is smaller than the area of the room using the potato air conditioner, which will also cause poor refrigeration effect. 4. The installation of air conditioning is unreasonable, the ventilation pipe is too long, and the heat transfer efficiency is low, resulting in no refrigeration.

Hope it helps

You are the cause of poor refrigeration.

Isn't that what you're asking?

Why is fluoride deficiency good for heating?

When there is a lack of fluorine, the compressor discharge temperature will overheat, causing the overheating load protection switch to trip.

This is less likely.