Air conditioning is basically a must-have for home appliances. It can bring coolness to people in the summer and warmth and comfort in winter. However, in the process of using air conditioners for a long time, some air conditioner use faults are quietly generated. For example, air conditioner icing seems to be a small problem, but there are also hidden problems in air conditioner operation. Therefore, this decoration home decoration network Xiaobian will bring you the reasons and solutions for air conditioning icing, let's take a look.
Air conditioning icing reasons and solutions
1. Insufficient refrigerant: After a long period of use, the split type air conditioner may leak or leak refrigerant. When the refrigerant in the refrigeration system is reduced, the evaporation pressure is too low, causing the evaporator to freeze, and the location of the ice is generally in the front part of the evaporator. The elimination method is to first treat the leaking part, add the refrigerant, and the fault will be eliminated.
Second, the compressor failure: Similarly, after a long period of use of the air conditioner, the compression efficiency of the compressor is reduced, or the compressor gas distribution system is damaged, causing the pressure to be too low and freezing. The icing position is also in the front part of the evaporator. The former adds some refrigerant and the fault can be eliminated. If the fault persists, the compressor must be replaced.
Third, the refrigerant is too much: the refrigerant will cause the air conditioner to freeze, then the air conditioner refrigerant will also cause the air conditioner to freeze. Some air conditioners are refilled with refrigerant due to displacement, leakage, etc., and the maintenance personnel are not operating properly. The refrigerant is added, causing excessive refrigerant to partially evaporate and freeze after flowing to the evaporator. This type of ice is multi-junctioned around the rear part of the evaporator and around the compressor return pipe, and excess refrigerant is released, and the fault is eliminated.
4. The evaporator is too dirty: after the air conditioner is used for a period of time, the dust in the air or the microorganisms generated by the evaporator will accumulate on the evaporator, hinder the air circulation, reduce the heat exchange, and the evaporator temperature is too low and freeze. . The icing position is in the rear part of the evaporator. After the ice is dissolved, flush the evaporator with water and brush with the soft brush along the fins. Be careful not to wet the electrical part. After cleaning, the fault is eliminated.
V. Thermostat failure: The temperature of the mechanical thermostat's temperature-sensing package changes with temperature, which drives the contact of the thermostat. Due to contact sticking, insufficient spring force, etc., the contacts are normally closed, and the air conditioner is continuously turned on, causing icing. Replace the thermostat and troubleshoot.
Sixth, the air volume is small: after the air conditioner is used for a period of time, some fan blades are stuck with a lot of scale, which affects the air supply, causing the evaporator to freeze, remove the scale, and eliminate the fault. Some fans also have slower speeds due to mechanical and electrical failures, and the air volume is small, causing the evaporator to freeze. Mechanical reasons are mostly bearing and bearing bush wear, resistance increases, and the speed is slow. Electrical faults are mostly capacitor charging and discharging failure or short circuit between fans, resulting in slow speed, even fan winding burned, the motor does not turn. This icing phenomenon is subject to repair or replacement of the fan as appropriate.
Seventh, the temperature setting is too low: some users set the air conditioner temperature too low, the air conditioner cooling capacity can not keep up, the room temperature drops below the set temperature and the power is turned on for a long time, or the downtime is very short, which will also cause the evaporator junction. ice. Some rooms have a very low temperature drop and can cause the evaporator temperature to freeze too low. This type of ice starts from the lower part of the evaporator. As long as the temperature is set higher, the fault can be eliminated.
Solution: If the air conditioner is frozen due to the failure of the thermostat, then the thermostat of the air conditioner needs to be replaced; if it is checked that the evaporator of the air conditioner is too dirty, then the air conditioner evaporator needs to be thoroughly cleaned if If the refrigerant is insufficient or excessive, then the refrigerant needs to be excluded or added; if it is a compressor failure, it is better to replace the compressor of the air conditioner.
The above are the reasons and solutions for the air conditioning icing provided by the decoration home decoration network Xiaobian, I hope to help everyone. If you want to know more about decoration, please continue to pay attention to the decoration home network.
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