In the sweltering summer heat, air conditioning should now be our only solace. High temperature weather, blowing fans are not enough for us, we prefer air conditioning than comfort, so that the summer will not be sad. Without the invention of air conditioning, the hot weather is simply unbearable, it is difficult to sleep in the summer, sweating and sweltering, so hot that you do not want to move. What about the air conditioner malfunction? For example, what is the fault of the United States air conditioning e3? What should be done? The following gives you a detailed description, you will be clear.
The United States air conditioning e3 fault description
E3 means compressor low pressure protection.
1, to determine whether the ambient temperature is too low.
2, to determine whether the control fault or system failure, you can first short the LPP plug on the main control board and the zero line N on the motherboard, if the indoor unit is running normally, you can determine the indoor unit main board or display board is not a problem, the fault appears in the indoor and outdoor unit connection line, plug connector or outdoor unit low voltage switch.
3, the external machine connection line and plug, set the multimeter on the ohm block, a meter pen connected to the motherboard pulled off the LPP protection line, another meter pen connected to the zero line N, if the resistance value of 0, indicating that the fault in the low-voltage switch, and vice versa is the line problem. The pressure gauge is used to determine whether the system is leaking fluorine, or blocked.
Air conditioner fault winding order
The most common problem is that the air conditioner does not cool well or does not cool, and the lack of fluorine is the key. Turn on the machine first touch the air return pipe, through the temperature to determine. If the cold check the inner machine, the fan speed may be low. Inner tube scales and dust, clean or replace. If the inner tube is not cold, the thick tube may have squashed. Return air temperature is not cool, and then touch the air intake to determine. If the inlet air is cold and frosty, try again with fluorine. If the frost is slowly dispersed, it is a good decision to determine the lack of fluorine. Compressor aging is not difficult to see, exhaust gas is not enough to focus on. Four-way string gas is also common, through the collection of fluorine to determine. High-pressure scales must be seen, dirty will also be slow refrigeration.
Note
We must strictly follow the scientific procedures when encountering a fault in the air conditioner, do not be in the case of unclear, unknown fault, the heart of countless blind action, disassembly at will. The consequences of doing so will often expand the existing fault, increase operating costs, shorten the normal life of the equipment, leading to early scrapping of equipment.
The above the United States air conditioning fault e3 related to the introduction, I believe we are clear about the reasons, the air conditioner for the corresponding repair can be, will not remember to ask professionals to repair, I hope that the problems we encounter can be solved. We do not know that we have fallen in love with the environment of air conditioning, we can work comfortably in the place where there is air conditioning, read books and watch movies, etc., think of all feel comfortable and cool, the summer is not sad. The emergence of air conditioning is a great solution to our problems, so that we can live a better quality of life, thanks to the progress of science and technology and the development of society.
