When the main control chip of the internal unit of Hisense inverter air conditioner is damaged, the following manifestations may occur:
1. The air conditioner cannot be started or run normally.
2. The display cannot display information such as temperature and mode.
3. Unable to adjust the temperature or mode;
4. The remote control can not control the air conditioner;
5. The internal machine makes abnormal sound or vibration;
6. The inner machine running time is too long or too short;
7. The internal computer cannot connect to external devices, such as WiFi or Bluetooth. If the preceding situation occurs, you may need to replace or repair the main control chip to restore the normal operation of the air conditioner.
When the motherboard of the air conditioner is damaged, the indicator light will not appear bright. The protection code of each brand is also different, such as showing E1, E5, etc., but generally see these codes, which are related to the motherboard.
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The air conditioner suddenly crashed, if the socket is unplugged, plug it back in, it still can not start, is generally the motherboard problems. In order to avoid more serious damage, this situation should not be used directly, otherwise it will lead to more serious damage to the motherboard and higher maintenance costs in the later period.
Generally there are the following aspects:
Cannot start: When you press the air conditioner switch, the air conditioner does not respond or can only start for a few seconds and then automatically shut down.
Function failure: When you turn on a function, such as cooling, heating, dehumidification, etc., you find that the function has no effect, or only a part of the function can operate normally.
Temperature control failure: When you want to lower or raise the temperature in the room, you find that no matter how you set the temperature value, it can not achieve the desired effect.
If the motherboard chip is damaged, it is that the boot does not respond or each fan turns, and the display does not respond. In addition, if you can boot, it does not necessarily mean that the hardware is no problem. If the motherboard is unstable, crash, blue screen, is also a common thing. For example, if the cpu fan is turning and cannot be turned on, it is necessary to check whether the power supply of the motherboard is normal.
There are capacitors on the motherboard, and bad quality capacitors are easy to explode, causing irregular crashes, and may not be able to boot.