Improper use of air conditioning heating function will burn out the motor!

Improper use of air conditioning heating function will burn out the motor!

With the gradual decrease in temperature, various household heating appliances have come in handy. However, with the increase in frequency of use, the phenomenon of air conditioning not heating has begun to occur.

Although air conditioners have always been known for their refrigeration, the heating effect of air conditioners cannot be ignored, because most household users in our country use air conditioners for winter and summer, and choosing air conditioners with good heating effects has become a major choice for consumers. The key is how does the air conditioner heat, and what is the principle of air conditioner heating? What are the reasons why the air conditioner does not heat? What should I do if the air conditioner does not heat in winter?

　　 Classification of air conditioners

　　 heating and cooling air conditioners are divided into three categories according to their heating principles: heat pump air conditioners, electric heating air conditioners, and electric auxiliary heat pump air conditioners.

　　 (1) Heat pump type air conditioner

　　 The structure of the heat pump type air conditioner is basically the same as that of the single-cooling type air conditioner, that is, the air conditioner cools indoors and cools outdoors in summer; while in autumn and winter, indoor heating and outdoor cooling are used for heating purposes. It has the advantage of higher efficiency, but the disadvantage is that the applicable temperature range is small. Generally, it will stop working when the temperature is below minus 5°C.

　　 (2) Electric heating type air conditioner

The electric heating type air conditioner is based on the single-cooling type air conditioner structure. The left side circulation system of the indoor unit is equipped with electric heating elements. During heating operation, the heating effect of the electric heating element is used to achieve heating purpose. The electric-heated air conditioner has a simple structure, is easy to use, and is not affected by the outdoor ambient temperature. The disadvantage is that it consumes a lot of power.

　　 (3) Electric auxiliary heat pump type air conditioner

Electric auxiliary heat pump type air conditioners add electric heating elements on the basis of heat pump type air conditioners, which combine the advantages and characteristics of heat pump type air conditioners and electric heating type air conditioners, and use a small amount of electric heating to supplement the heat pump heating energy. Shortcomings of insufficient. It not only effectively reduces the power consumption of pure electric heating, but also solves the temperature limitation of pure heat pump.

　　The reason why the air conditioner does not heat up

　　Improper use and maintenance

　　 Studies have pointed out that nearly 80% of air-conditioning heating failures are not machine problems, mainly caused by factors such as user use and improper maintenance, especially in winter.

　　 Solution: When using the air conditioner for heating in winter, pay attention to the sealing of the room. Observe whether the outdoor unit is frosted or frozen. Do not use hot water for defrosting and deicing. If there is any problem, you should contact the after-sales department of the air conditioner manufacturer in time. If you encounter a malfunction, you should stop using it, use other heating products for heating, and contact a professional air-conditioning repairer to check and repair.

　　 Fluorine deficiency

　　 At present, most of the air conditioners are heat pump type or heat pump plus auxiliary electric heating type. The working principle of these two types of air conditioners is that when the freon evaporates, it absorbs heat from the outdoor air. When the outdoor temperature is low, the temperature difference with the freon evaporation temperature 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, and the compressor wears a lot. When the outdoor temperature is below 0°C, the heating effect of the air conditioner is difficult to satisfy. In addition, if the nut on the brass horn is not tightened during the installation of your own air conditioner, or the machine has been moved, it can be considered as fluoride deficiency. In addition, circuit control failures are also more common. For example, if the external computer does not work, it is mostly a capacitor, temperature probe or motherboard failure.

　　 Solution: The air conditioner is suspected to be lack of fluoride, please ask the after-sales service personnel to check the fluorine addition.

　　 environmental external factors

　　 1) When the outdoor temperature is below zero, the outdoor unit of the air conditioner will form frost. At this time, when the user turns on the air conditioner to heat, it takes about 8-12 minutes to "defrost", the room temperature may drop, and some users mistakenly think that the air conditioner heating effect is not ideal.

　　2) Heating in winter increases the power consumption, which may cause unstable or too low power supply voltage in the area, causing the air conditioner to not work properly;

　　3) Since the outdoor temperature is below -5 degrees, the heating effect of the air conditioner is affected. The lower the outdoor temperature, the worse the heating effect of the air conditioner, that is, the actual heating capacity is insufficient.

　　4) The applicable area of ​​air-conditioning heating is smaller than the area of the room where the air-conditioning is used, resulting in an undesirable increase in the room temperature, that is, the rated heating capacity is insufficient. This should find ways to reduce the area of ​​the room or turn on the auxiliary electric heating, and use the heater or heater at the same time.

　　 Solution: Use curtains to reduce the room area; when using air conditioners, if the voltage in the area is insufficient, try to avoid using the air conditioners during peak electricity consumption; it is recommended not to turn on the air conditioners below -5 degrees, use auxiliary electric heating, use wall-hung boilers or heaters.

　　 Air conditioner has too much dust

　　 Generally speaking, the cooling effect of air conditioners is not good, partly because the air filter has too much dust and the vents of the internal and external units are blocked by foreign objects. The function of the filter is to absorb the dust in the air. If the accumulated dust is too much and not cleaned in time, it will block the air circulation, resulting in a reduction in the air output from the air outlet, so that the internal heating cannot be brought out by the flowing air in time. Insufficient heating capacity.

　　Solution: Too much dust in the air conditioner. This is not a malfunction. It is a maintenance problem of the air conditioner. You only need to remove the air filter regularly to clean it and it can return to normal. Shanghai Quntan recommends cleaning the filter of the indoor unit of the air conditioner every half a month.

　　 Matters needing attention when heating

　　 1. Choose the right air conditioner

　　 Home appliance experts believe that the size of the room is different, and the number of applicable air conditioners is also different. In addition, if the room is not well sealed, the window area is too large, and the air conditioner filter is not clean, the heating effect will be affected.

　　2, choose a healthy temperature

　　 The setting temperature should not be set too high. Generally, the setting temperature is 15 degrees higher than the outdoor temperature. Too high will cause discomfort to the human body. Generally, set it to about 20 degrees in winter.

　　3. Ensure indoor air circulation

　　 Doors and windows must be closed tightly when turning on the air conditioner. Over time will lead to lack of oxygen in the room, and bacteria and viruses will also accumulate in large quantities. Therefore, the air conditioner should be stopped every time the air conditioner is turned on for more than 2 hours and the windows should be opened for ventilation.

　　 4. Make the air conditioner blow downward

　　 From the perspective of air flow, it depends on whether you are a cabinet machine or on-hook. If the cabinet machine is generally not a big problem, pay attention to hanging up. When heating, let the wind blow down as much as possible; because the heating blows hot air, it is easy to go up after the hot air blows out, and it is not easy to go down. Above it, it is easy to cause air short circuit, and the temperature in the area where people move is low. The return air vent of the cabinet is underneath, and the air coming in is cold air. The indoor temperature is easy to be uniform, and this problem will not occur.

　　 5. Use high wind as much as possible

　　 This saves power and has a good effect. High wind may cause lower wind and lower wind, but high wind will easily circulate the indoor air, and the room temperature will be more uniform. If it is too low, just blow it down.

　　 6. Maintain a certain humidity

　　 When heating, the indoor air will become dry. Dry air conditioners will make the human body feel uncomfortable and cause diseases. So when heating, you can put a basin of water in the room. If there is a humidifier, you can turn on the humidifier.

　　7, keep the room clean

　　 It is also okay to mop the floor or sprinkle water. It is best to cultivate plants that can clean the air indoors, such as Chlorophytum, Huwei, etc., which can clean and moisten the air and keep the indoor air fresh;

　　 8. Clean the filter frequently

When heating in winter, the air conditioner will turn on the electric auxiliary heating, and the dust accumulated in the air conditioner will be roasted under the heating of the electric auxiliary heating tube to give off a peculiar smell. At the same time, the dirty filter will cause the heat to fail to be dissipated, causing the air conditioner to malfunction and fire. .

　　 Special precautions for heating in winter

　　Air conditioning defrost

　　Some users found that the wind blowing out when the air conditioner was first turned on was very hot, but it didn't get hot afterwards, and some were still blowing cool breeze.

　　The situation is like this: when the air conditioner is heating, the indoor unit blows hot air, and the outdoor unit blows cool breeze. This method of transferring outdoor heat to the room is called heat pump heating. When the air conditioner is running, the temperature of the outdoor unit heat exchanger is lower than the air temperature, and the water vapor in the air condenses and forms frost on the heat exchanger.

The air conditioners produced by regular manufacturers have automatic defrosting function. The indoor unit does not blow or blow cold wind during defrosting. Under normal circumstances, the frost can be automatically removed. However, in snowy or foggy days, the air conditioner will operate for a long time. Snow and fog will freeze as soon as they touch the heat exchanger of the outdoor unit, so a thick layer of ice armor will be formed during a defrost cycle.

　　 When the ice layer is too thick during defrosting, a water tank made of ice is formed in the lower part of the heat exchanger. When the air conditioner starts heating again, the water in the sink quickly becomes ice and freezes the heat exchanger. At this time, the heat exchanger of the external unit of the air conditioner only relies on the upper part that is not frozen to exchange heat, and the temperature will be lower. The ice will be thicker. This will form a vicious circle. Eventually, the heat exchanger will be completely covered by a thick layer of ice armor. At this time, the heating effect of the air conditioner is very poor, and the ice armor will be too thick, which will hinder the operation of the outdoor fan, or it may The fan is hit, or the motor is burned out.

　　 So how should air conditioners be used in winter? For users, use them as little as possible or not use air conditioners in snowy or foggy days, because air conditioners consume a lot of electricity and have poor heating effect. In case the heat exchanger is accidentally frozen, if the outdoor temperature is below zero, it will be difficult for the ice to fall off automatically.

　　 Can the user defrost by himself? The air conditioner can be set to the cooling state when the room temperature is lower than the set temperature, and the air conditioner will not start. At this time, we can blow the temperature sensor of the indoor unit with a hair dryer or cover it with a hot towel. For the air conditioner with man-machine dialogue function, it is even simpler. Just blow the temperature sensor on the remote control with your mouth.

　　 How effective is the air conditioner defrosting on the market now? Among the air conditioners on the market, inverter air conditioners have better defrosting effect than fixed speed air conditioners. The short defrost cycle of fixed speed air conditioners z* is 50 minutes, the defrost time is 5-8 minutes, and the shortest defrost cycle of inverter air conditioners is 30 minutes. , The defrosting time is 3-15 minutes.