Whats the problem with the air conditioner not heating

Generally speaking, the heating and cooling effects of air conditioners are not good, partly because the air filter (function: filtering impurities, etc.) has too much dust and the vents of the internal and external units are blocked by foreign objects. The function of the filter mesh 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, which will cause the air output of the air outlet (definition: the air circulation per unit time) to be relatively low. The reduction in the air conditioner makes the internal heating (Heat) unable to be brought out by the flowing air in time, resulting in insufficient heating. This is not a fault, but an air conditioning maintenance problem (Emerson). You only need to remove the air filter regularly. After cleaning, it can return to normal. In addition, recently, the lower temperature (temperature) has continued to drop, and the ambient temperature during heating is too low, the energy efficiency ratio of the air conditioner will also be reduced (reduce), and the heating effect is not ideal, which is also a normal phenomenon. Therefore, experts suggest that electric heating is better when choosing to buy air conditioners.

It can be called a fault. The lack of fluorine is one of the central air conditioners. During the welding process, nitrogen must be flushed into the copper pipe (nitrogen-filled welding process), which prevents the copper pipe from having no air inside. Welding causes the inner wall to be carbonized and enters the compressor during the actual operation, resulting in malfunction. At present, most citizens use heat pump type or heat pump plus auxiliary electric heating type air conditioner. 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 (temperature) is small, and the heat exchange effect becomes worse. not enough. Therefore, if it is an old model, the service life is longer, and the compressor wears (a basic type of component failure) to a greater degree. When the outdoor temperature (temperature) is below 0°C, the heating effect of the air conditioner is very good. It's hard 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 fluorine deficiency. In addition, line control (control) faults are also more common. For example, if the external machine does not work, it is mostly a failure of the capacitor, the temperature probe or the main board.

Some citizens will also wonder: "The air conditioner is still used well in summer, why won't it work in winter?" According to the analysis, its fault mainly occurs in the four-way solenoid valve (magnet valve) or its control ( On the control circuit, it may also be the AC contactor, the thermostat and the over-temperature fuse of the electric heater and its power supply circuit, all of which need to be inspected (inspected and tested) by a master .