How to solve the air-conditioning leakage

There is a great safety risk in air-conditioning leakage. Assuming air-conditioning leakage, close the power supply in time, and then carefully look for the elements, and tell professional repair personnel when necessary. 　　 After the air conditioner is energized, the shell or knob will cause electric shock to the human body. Use a test pencil to see if there is a strong light, which is a serious leakage; touch the outside of the air conditioner with your hand. The air conditioner shell and the knob have a numb touch, and it is slightly bright with a test pencil, which is a slim leakage. 　　 First check if your air conditioner has been connected to the pipes and wires in the early years, and if it is assumed to be connected, then you have to see if your wiring is poorly touched or there is a bare leak, or it may not be wrapped properly. Assuming that there is no doubt about the connection line, then it is the doubt of the external machine. You can disassemble the external unit to see if there is a virtual connection inside. The first thing is the plug or maybe the connection of the compressor is stuck. Assuming that there is no doubt about disassembling the external machine and checking the wiring of the external machine, then you need to use the investigation method. The primary components inside the external machine are the capacitor, the compactor, and the fan motor. You can disconnect one of the wiring in between one by one, see See if your brake can be closed, assuming it can be closed, then you can confirm that your motor is in doubt and replace it.

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How to solve the air-conditioning leakage

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Working principle of air conditioner temperature controller

In the use of our home air conditioners, the most important function is to ensure that our indoor temperature is maintained at a relatively comfortable degree, and the air conditioner temperature controller is a tool to help us achieve this. What is the principle of controlling the temperature of our air conditioner by air conditioner? Today I will introduce some working principles and functions of air conditioner temperature controller for everyone to understand.

06/20/2020

What are the causes of air conditioning trip

What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. 　　Here are two formulas involved: 　　①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. 　　② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. 　　 So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. 　　 Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 　　 2. Leakage 　　During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. 　　Why does the electric leakage cause the MCB to trip? There are two situations. 　　 ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. 　　②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. 　　How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. 　　 ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. 　　②Measure whether the output current exceeds the standard. 　　 So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.

06/20/2020

The main reason for the slow heating of air conditioners

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How to properly clean the air conditioner yourself

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The principle characteristics of air conditioner remote controller

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Analysis of the circuit diagram of the two compressors' phase failure protection

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