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Common problem

  • Q: what are the common causes of the failure to turn on the air conditioner?
    Answer: The common reasons for the inability to turn on the air conditioner are: 1. Whether the user power is normal, whether the plug is falling off or loosening; 2, whether the battery of the remote controller has electricity, such as the lack of electricity, the emission signal is weak, the indoor machine can not receive the signal, and can not make the boot response; 3, is the remote controller far away from the indoor machine, or the angle is too biased and not aligned with the receiver. If there are no problems in the above inspections, please call the Shanghai rich reputation service line: 021-61276055! We will arrange professional and technical personnel to serve you at home.
  • Q: why does the air-conditioning fan continue to operate when the compressor stops working?
    Answer: During the refrigeration operation, condensing water will be generated in the evaporator. After the shutdown, the air conditioner needs to continue blowing and dry the condensate to prevent mould. This phenomenon is a normal phenomenon.
  • Q: why can't the air conditioner start when the voltage is low?
    Answer: If the voltage is too high or too low, the use of air conditioners under such conditions for a long time is likely to cause damage to the electrical appliances such as compressors. Therefore, the air conditioner must work in the normal working voltage range. It is advised not to use the air conditioner frequently under the condition that the voltage is too high or too low. If the voltage is too low, users must buy stable power supply and stabilize the voltage, and the power of the regulator should be air-conditioner. 3-8 times the rated power.
  • Q: why can't the air conditioner turn off immediately after shutdown?
    Answer: After the air conditioner is shut down, it will take at least three minutes to turn on the machine again. The aim is to balance the high and low pressure in the system, otherwise, the liquid hammer will occur in the compressor, which will cause damage to the parts and affect the life of the compressor.
  • Q: when the air-conditioner is running, why does the air conditioner send out a "loud noise" like running water?
    Answer: During the operation of the air-conditioner, the internal refrigerant state is constantly changing, from liquid to gaseous state, and then from gas to liquid. This normal physical phenomenon flows at a certain speed in the refrigeration system. Due to a certain resistance, it will produce a "loud noise" of the running water, which is a normal phenomenon, especially in the dead of night.
  • Q: what causes the indoor temperature drop sometimes?
    Answer: There are many reasons for indoor temperature drop. For example, there are many indoor people and large heat dissipation. Outdoor air temperature is high, room windows are not strictly closed, there are heat sources near the air conditioner, and door switches are frequent.
  • Q: when the air-conditioner is refrigerated, the ventilation of the indoor unit is poor, and why is the wind speed slow and fast?
    Answer: If the air filter is not cleaned in time, if the mesh is blocked, there will be poor ventilation, slow air volume and slow cooling. It is recommended to clean the filter network once a month.
  • Q: how can the air conditioner suddenly generate heat under the condition of refrigeration?
    Answer: 1, when the weather is very hot, when the air conditioner reaches or near the set temperature, the compressor will stop and the indoor unit will send the natural wind. Therefore, when the natural wind is sent, the air will be hot. 2, check what pattern is set, such as automatic mode, the air conditioning temperature is higher than the room temperature, air conditioning heating, if it is lower than the room temperature, the air conditioner will be refrigerated; 3, if the above items are checked without any problems, please call Shanghai's reputation after service telephone: 021-61276055 !
  • Q: in the heating mode, why is there no wind?
    Answer: The cold air function of the air conditioner can prevent the indoor blower from not working when the evaporator temperature does not reach a certain value when the air conditioner is heating. So as to avoid the cold wind blowing into the body to cause a cold. When the evaporator temperature rises to a certain value, the main control panel determines that the wind blow does not cause human discomfort, so that the fan moves and blows hot air.
  • Q: in the process of heating, why does the indoor air supply stop for a while and then re open?
    Answer: This is the defrosting of the air conditioner. When the air conditioner works for a period of time, the outdoor condenser will have very thick frost and snow. If we can not melt the frost and snow in time, it will directly affect the heating effect of the air conditioner. So when the air conditioner runs for a certain time, when the computer determines that the air-conditioner meets the frost condition, it will go into the defrosting mould, and the indoor machine will usually stop the air supply during the frost.
  • Q: why does the indoor air outlet have plastic smell when the new air conditioning is heating?
    Answer: When the new machine is used for heating, the air blower of the indoor unit is not running, the indoor temperature is very high, and the slight plastic taste of the plastic parts inside the machine is normal. After a certain period of time, the odor will disappear automatically.
  • Q: how long does air conditioning need to use Freon?
    Answer: Hello, air conditioning plus Freon has no fixed time, mainly depends on the leakage of freon in the pipeline. If it does not leak, it does not need to add freon, nor does it need regular addition. If Freon leaks, the use of air conditioning will be affected. Please repair it in time. Shanghai group altar after-sales service line: 021-61276055
  • Q: in general, how long is the air conditioning defrosting?
    Answer: Hello, the normal time of defrosting is 6 minutes -10 minutes.
  • Q: is it normal for the inverter air conditioner to stop operation for a long time?
    Answer: When you use air conditioning environment insulation is very good, the room temperature is lower than the set temperature, then the inverter air conditioner will stop. Even if the frequency conversion air conditioner runs at the lowest frequency, it will produce a certain amount of cold. But at this point, the room has no energy loss. According to the law of conservation of energy, the air conditioner will stop at this time, which is a normal phenomenon.
  • Q: after the air conditioning has been used for a long time, there is a smell blowing. What is the reason?
    Answer: The air conditioning itself does not produce peculiar smell. Generally it is a filter that has not cleaned the indoor machine for a long time. There is no simple cleaning and maintenance on the surface of the indoor evaporator, which leads to mouldy and metamorphic, and when it starts running, it smells peculiar smell. After cleaning the filter screen, the odor will be eliminated. It is recommended to clean once a month or so in the air conditioning season.
  • Q: is there much noise in the central air conditioning system? Is the central air-conditioning of the United States very noisy?
    Answer: The central air conditioners installed in public places such as waiting rooms and supermarkets are slightly more expensive and have higher cost performance, and have no influence on people's feeling and hearing comfort. For example, in bedroom, hospital, library and other places with high requirements for mute, the United States also has a central air conditioner specially designed for this purpose. The minimum noise is only 24 decibels. It is hard to hear carefully with your ears, so that you can enjoy a comfortable and quiet life.
  • Q: can you install the central air conditioning when the decoration is finished?
    Answer: Hello, central air-conditioning is generally installed or hidden installation of ceiling, it is recommended to install before the decoration ceiling, so as not to cause damage to the decoration effect, resulting in the two decoration.
  • Q: is the central air-conditioning pipe in the house decorated? Is it convenient to wash?
    Answer:
    Hello, at present, the general household central air conditioning is basically equipped with a return air box and filter screen. Under normal circumstances, as long as the filter screen can be cleaned, because of the humanized design, the removal and installation of the filter screen is very convenient.
  • Q: what is the problem of slow air-conditioning and refrigeration?
    Answer: (1) whether the dust screen is covered with dust and rubbish; secondly, whether the location of the wind guiding wind strip is proper; (3) whether the wind speed gear is correct; (4) whether the temperature setting is appropriate; whether the refrigeration and heating are selected at the same time, causing the mode conflict.
  • Q: the start of the air conditioning system in the United States starts with refrigeration. It turns into hot air in about 15 minutes.
    Answer: Hello, maybe the motherboard is defective.
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