Why does the refrigerator suddenly sound?
2, the refrigerator suddenly issued a "giggle" pops "sound or soundThis is the condenser and evaporator of the refrigerator, thermal expansion, cold contraction, or ice on the evaporator surface, heated or cold. In the following cases, there is more chance of making this sound.A the internal stresses of some refrigerator materials have not disappeared. As the use of time increases, the internal stress of the material gradually disappears, and the possibility of this sound is reduced.After the defrosting of the B refrigerator, the temperature inside the box is uneven.When the C opens the refrigerator door, the evaporator in the box is suddenly heated.The D refrigerator starts running or stops for a few minutes, and the condenser and evaporator vary considerably in temperature.E refrigerator in use for six months or a year later, due to the compressor internal airframe running in, the gap increases, noise also increases. It then enters a stable phase and lasts until the end of the refrigerator life.
1, compressor noise generally comes from the following aspectsA compressor internal suction valve and exhaust valve, when the boot, each valve slice to open or close 47 times a second, vibration sound. At the same time, the valve does not stop colliding with related parts, also a buzzing sound.B compressor manufacturing, there must be a gap between the components, the refrigerator is running, the existence of clearance of some components collide, especially in shutdown, compressor parts stress changes greatly, the sound is also larger than usual.C fluid noise, the compressor running process is a continuous suction and exhaust process, compressor suction or exhaust refrigerant gas by the pressure has a mutation, will produce vibration sound.
You can open the refrigerator to understand the source of noiseThe noise mainly comes from the refrigerator compressor, evaporator and condenser pipe between the thermal expansion and contraction, friction or resonance, refrigerant in the pipeline flow and not produce vibration pad refrigerator.
D electromagnetic sound produced by an internal motor.The E compressor body is supported by 3 suspension springs or spring support in the housing. Compressor start or stop when the body stress changes greatly, sometimes causing the body with a touching voice, this situation lasted for a short time.F refrigerators rely on refrigerant to circulate in the pipes, especially when they flow through the evaporator. If the refrigerator does not hear this work, and the evaporator is not refrigeration, condenser is not hot, indicating that the refrigerator has a fault.
