Traditional Culture Encyclopedia - Weather inquiry - Why doesn't the central air conditioner at home cool?

Why doesn't the central air conditioner at home cool?

The first reason why the central air conditioner does not cool is that the indoor unit or outdoor unit does not run. What if the central air conditioner doesn't cool? When the central air conditioner is not cooled, first check whether the air conditioner works normally, including the indoor unit and outdoor unit, especially the compressor of the outdoor unit. As long as one of them doesn't work properly, you have to ask a professional to fix it. The second reason why the central air conditioner does not cool is that the temperature is not adjusted well or the doors and windows are not properly closed. What if the central air conditioner doesn't cool? Some users often mistake the temperature adjustment switch because of their lack of common sense about central air conditioning. As for how to use the central air-conditioning switch, we have already talked about it in detail in the article "Switching Rules of Household Central Air-Conditioning-Let Central Air-Conditioning Save Electricity and Live Longevity". In addition, if the doors and windows of the room are not properly closed, the central air conditioner will not cool. No matter what air conditioner is running normally, the room is required to be closed. Therefore, when the central air conditioner is not cooled, it is necessary to check whether the doors and windows of the room are closed. The third reason why the central air conditioner does not cool is that there is a problem with the power supply or voltage. What if the central air conditioner doesn't cool? This phenomenon is more common in summer, because in hot summer, the electricity consumption is relatively large, which seriously exceeds the electricity load, which will lead to the central air conditioning not cooling. In this case, there is no better way. At most, it is to negotiate with the local property to increase the rated power, and then buy a better voltage regulator. The fourth reason why the central air conditioner does not cool: the air filter is blocked? . What if the central air conditioner doesn't cool? Because the air conditioner has been used for a long time, the filter screen is blocked and it is not cleaned regularly. After a long time, the sediment accumulates more and more, which eventually leads to the central air conditioning not cooling. It is recommended to maintain the central air conditioner regularly.

Generally speaking, professional central air-conditioning companies will provide two years of cleaning and maintenance work, and users can check and accept the cleaning process according to the cleaning procedures and methods of central air-conditioning. The fifth reason why the central air conditioner is not cooled: is there a problem with the wiring of the internal and external machines? . What if the central air conditioner doesn't cool? The wiring between internal and external machines is also one of the places where faults often occur. If this failure occurs, it is recommended to check whether the wire connector is welded and then wrap it with waterproof insulating tape. This is an important step, and it is recommended to let professionals solve it. The central air conditioner does not cool. Reason 6: Is the sensor short-circuited or short-circuited? . What if the central air conditioner doesn't cool? The temperature sensor of the central air conditioner is short-circuited or appears short-circuited, the plug-in is in poor contact, and the socket is out of welding. The reason of short circuit is that the resistance value is reduced below 200 Ω, the circuit board leaks or the components leak, etc. , it will cause the central air conditioner not to cool. At this time, the pressure protection is small, so it is recommended to check whether the sensor is in good condition. Reason 7: Is there a fault code? What if the central air conditioner doesn't cool? Generally, there will be corresponding code prompts when the central air conditioner fails. In general, the user can find the cause of the failure only by code. This station has Daikin air conditioning fault code and Trane air conditioning fault code. If you don't understand the meaning of these codes, it doesn't matter. It is well understood that this is one reason why the central air conditioner does not cool. It is recommended to ask professionals to eliminate it. ? Reason 8: Air conditioning design horsepower is too small? . What if the central air conditioner doesn't cool? If the central air conditioner works normally, everything else is fine, but there is no air conditioner in the room, and only air conditioner is connected to the air conditioner blower, probably because the horsepower of the central air conditioner is too small and the room space is too large. This requires the central air-conditioning designer to reasonably design the horsepower of air-conditioning according to the user's apartment area. If you want a better cooling effect, it is best to properly over-allocate the cooling capacity.