Reasons and solutions for cabinet air conditioners not heating

The reason why the air conditioner does not heat up:

1. Lack of fluoride. 2. The air outlet of the internal machine is not smooth, and the filter needs to be cleaned.

3. The four-way valve is slightly drained.

4. There is a problem with the extra capillary or single valve for heating.

5. The efficiency of the compressor is reduced due to aging.

6. The outdoor temperature is low or the humidity is high, resulting in the reduction of the efficiency of the air conditioner itself.

7. The auxiliary electric heating is not started.

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

There are several main reasons why the air conditioner does not heat:

Improper use or maintenance of air conditioners cause air conditioners not to heat: pay attention to the airtightness of the room when using air conditioners for heating in winter, if the outdoor unit has frost and ice, do not use hot water to frost and ice, you should stop using the air conditioner, contact the maintenance personnel for inspection and maintenance.

If the air conditioner does not heat up due to too much dust: if the air conditioner does not remove dust for a long time, it is easy to make the air filter screen accumulate too much dust, and the vents of the inner and outer units of the air conditioner are blocked by foreign objects. The air conditioner should be maintained frequently and the air filter should be cleaned regularly so that the air outlet can supply air normally.

The lack of fluorine in the air conditioner causes the air conditioner not to heat: now most air conditioning users use heat pump or heat pump plus auxiliary electric heating air conditioner, the working principle of these two air conditioners is to absorb heat from the outdoor air when the freon evaporates, when the outdoor temperature is low, the temperature difference with the evaporation temperature of freon is small, the heat exchange effect becomes worse, and the hot air is less. Therefore, if it is an old model, the service life is longer, the wear degree of the compressor is larger, and when the outdoor temperature is below 0, the heating effect of the air conditioner is difficult to be satisfied.

In addition, if the nut at the copper pipe horn is not tightened during the installation of your own air conditioner, or the machine has been moved, it can be considered as a lack of fluorine; In addition, line control faults are also common, for example, if the external unit is not working, it is most likely due to capacitance, temperature probe or motherboard failure. If the air conditioner is fluoride, contact the air conditioner after-sales personnel as soon as possible to solve the problem.

The external environment of some air conditioners is also a factor that causes air conditioners not to heat: the temperature in Dalian is relatively low in winter, if the outdoor temperature is too low, the heating effect will be significantly worse, and the actual heating is not enough. The usable heating area of the air conditioner is smaller than the actual area of the room, which will lead to factors such as insufficient heating of the air conditioner.

1.If the outdoor temperature is too low, the air conditioner will not work properly, and under normal circumstances, the outdoor temperature below minus 15 degrees will cause the air conditioner to not heat, because the defrosting function of the air conditioner cannot operate normally in a low temperature environment.

It is recommended to manually clean the frost of the air conditioner, but do not use hot water to melt the frost and ice, which will cause secondary damage to the machine.

2.The pressure gauge in the air conditioner is to test the pressure of the air conditioning heating system to determine whether the air conditioning pipeline is leaking, if the pressure is higher than the normal value, it means that the freon leakage causes the air conditioner not to heat.

It is recommended to ask a maintenance person to add fluoride.

3.If the filter is not cleaned in time, the dust will block the air outlet, and the hot air will not come out, and the heating effect will be worse.

When using the air conditioner frequently, it is recommended to clean the filter once every half a month, rinse with hot water or water, and do not use detergent to clean.

4.The air conditioner does not heat due to a leaking one-way valve or a faulty capillary. The check valve is used to switch the flow direction of the refrigerant in the air conditioner, and the check valve obtains heat from the outside world by increasing the resistance of the throttling element and the capillary to achieve the heating effect.

It is recommended to replace the check valve or capillary.

Reasons and solutions for cabinet air conditioners not heating

1. The capillary or check valve is abnormal.

The mechanism of the capillary vein is similar to that of the human capillary, which is to form a network of capillaries with an outer diameter of 5 mm and a water supply trunk with an outer diameter of 20 mm, in which case the capillary or check valve needs to be replaced.

2. The temperature outside the room is too low.

The outdoor temperature is too low to make the air conditioner unable to operate normally, the normal outdoor temperature is lower than 0 degrees, and the inverter air spring ear adjustment is no longer able to operate at minus 15 degrees, which will make the air conditioner unable to defrost, so that it can not be heated, in this case, the frost on the air conditioner needs to be removed with tools.

3. Four-way valve leakage.

The four-way valve is an important refrigeration component in the air conditioner, when the electric magnetic coil is powered off, the pilot slide valve faces left under the action of the compression spring on the right, so that the high-pressure gas will enter the capillary, and then enter the piston on the right, so that the piston cavity gas on the left comes out, resulting in a pressure difference between the two ends of the piston, and the piston and the main spool valve move to the left, so that the exhaust pipe and the outdoor unit are connected, and the other two pipes are also connected, thus forming a cold cycle. In this case, the four-way valve needs to be replaced.

4. Dust has accumulated on the filter screen.

This makes it impossible for the heat to be brought out by the flowing air, and too much dust on the filter will block the vents, so that the air output will be reduced, and the internal heat cannot be brought out, in which case the filter needs to be cleaned.

5. There is a lack of fluorine in the machine.

This leads to the inability of the air conditioner to refrigerate and heat the field, and the air conditioner needs to use freon evaporation to absorb heat from the outside when it is running, and it cannot operate normally if it lacks fluorine, which requires fluoride.

1. There is dust on the filter screen: after a long time of use, the air conditioning filter will accumulate a lot of dust on it, which will cause the heat generated in the air conditioner to be unable to be brought out in time, resulting in the air conditioner can not be heated, and the internal and external vents of the filter screen will be blocked by dust and foreign matter in the process of long-term Huai matching, if it is not cleaned up in time, then it will lead to less and less air outlet, resulting in the inability of the air conditioner to heat. Workaround:

Clean the air conditioner's filter regularly, so that the air vents can be dredged, so that the air conditioner's heating is normal. If you change to Haier self-cleaning air conditioner, you won't have this trouble, and the air conditioner can be self-cleaned with one button, which is very convenient.

2. There is a problem with the capillary or check valve of the air conditioner: the capillary network is a simulated capillary mechanism of the human body, which is mainly divided into a capillary with an outer diameter and a water supply circuit with an outer diameter of 20mm. The check valve is used to prevent the reverse flow of oil and also prevents the reverse flow of air.

If there is a problem with both, it will also cause the air conditioner to not heat up. Solution: Replace the capillary or check valve in time, so that the air conditioner can be heated again.

3. The outdoor temperature is too low: the outdoor temperature is too low, which will also affect the normal operation of the air conditioner. Generally speaking, if the outdoor temperature is too low, then the indoor air conditioner will not be able to heat normally, because in this case, the air conditioner cannot be defrosted, so the air conditioner cannot be cooled.

Solution: Manually use tools to clean the frost on the air conditioner, so that the air conditioner can be heated.

4. Air conditioning four-way valve leakage: The four-way valve is a control valve with four oil ports, which is an indispensable part of the air-conditioning system. Solution: Replace the four-way valve.

5. Lack of fluoride in air conditioning: there is no freon inside the air conditioner, it can not be refrigerated, the same way, no freon will also affect the heating effect, now most of the air conditioners are heat pump heating air conditioners, this air conditioner is the use of freon evaporation for the normal operation of the air conditioner, if there is no freon, it will cause the air conditioner to be unable to absorb heat normally, and there is no way to work normally. Workaround:

At this time, you can only ask professional staff to fluoride the air conditioner, so as to ensure the normal operation of the air conditioner.

6. The number of air conditioners does not match the size of the room area: the cooling capacity of 1P is about 2000 kcal, which should be multiplied when converted into SI unit watts, so that the heating capacity of 1 HP should be 2000 kcal W. Calculated to:

The heating area of the 1P cooling and heating hang-up machine is 8-14 square meters, and the heating area of the cooling and heating hang-up machine is 10-18 square meters. The solution to the letter Huai: replace it with an air conditioner that matches the number of horsepower and the area of the room.

1. Don't pay attention to maintenance. The filter in the air conditioner accumulates too much dust, blocking the circulation of air, making the heat unable to output in time, resulting in insufficient heating, which will make people feel that the heating effect of the air conditioner is not good or even no heating. This situation is easy to solve, you only need to remove the filter, wash it with clean water, dry it in a ventilated place and then install it back on the air conditioner.

Do not use detergents such as laundry detergent and dish soap, and do not dry the filter on an open flame. In addition, users should maintain a good habit of cleaning the air conditioner filter regularly, generally once a month.

2. Lack of freon. Nowadays, most air conditioners are heat pump type or heat pump plus auxiliary electric heating type, and the heating of these two air conditioners is to use freon evaporation to absorb heat from the outside air. If there is a lack of fluorine, it will not be able to absorb heat, and the air conditioner will not be able to heat.

In this case, you need to contact a professional to come to your home for fluoride. These are just a few of the main reasons why air conditioners don't heat. If the above three methods fail to solve the trouble that the air conditioner in your home does not heat, then it is possible that the only air conditioner is out of order, and you need to contact the after-sales personnel for door-to-door service.

Although the current air conditioner is generally used in summer and winter, the specialty of the air conditioner is still manifested in the refrigeration of pure eggplant, even if it works normally, the heating is not comfortable enough. If possible, it is recommended to use underfloor heating or radiator heating.

The cabinet air conditioner does not heat the temperature control fault, and the Xunye section needs to be replaced with a new thermostat after the air conditioner is in disrepair. There may also be a problem with the control system, check the control function of the air conditioner remote control. It is also possible that the air conditioner does not heat due to the failure of the heating function, so it is necessary to ask a professional to check and repair it.

The cabinet air conditioner does not heat because of the temperature control failure of the air conditioner, and the frequency of the usual use is too frequent and the air conditioner is in disrepair, which may cause the failure of the thermostat. If the thermostat fails, you can buy a new thermostat to replace it, and maintain it frequently when you usually use the air conditioner.

The failure of the control system may also lead to the cabinet air conditioner not heating, in this case, the first thing to check is the air conditioner remote control, if the air conditioner ridge remote control is not faulty, you need to ask professional personnel to repair it at home, to see if the control system has parts damage, wear and tear, etc.

It is recommended to check whether the heating function of the air conditioner can be turned on, if it is still unable to heat after opening, then it may be that there is a problem with the heating system inside the cabinet air conditioner, and you must find a professional to check and repair.

If there is no freon in the air conditioner, it will not absorb heat, resulting in a worse exchange effect and less hot air. Therefore, you can add fluoride to the space, and if you don't know how to add it, you can ask a professional maintenance master to add fluoride.