Tips for eliminating refrigerator noise

　　At this time, the following methods can be used to eliminate it: 30 minutes before going to bed, open the door and turn the temperature controller knob to a position close to the strong cold point, such as about 2°C, then close the refrigerator door. Before going to bed, open the refrigerator door again, and turn the temperature control knob from the original strong cold point to a weak cold point, such as about 8°C, and then close the door. At this time, the refrigeration compressor should stop running. After two temperature adjustments, the temperature controller in the refrigerator increased from a low temperature (about 2°C in the refrigerated part) to a high temperature (about 8°C in the refrigerated part). After an interval of about 1 hour, it restarted from the stopped state to the operating state. In this 1-hour quiet environment, the average person can enter a deep sleep state. Even if the refrigeration compressor is restarted, its impact will be relatively reduced.

　　【1】Properly raise the four corners of the refrigerator

　　Raise the refrigerator 3-6 cm and adjust the balance of the four corners to increase the air convection space at the bottom of the box. In this way, the compressor noise and other noises from the lower part come out from the bottom of the box, reducing the noise coming from both sides and the upper part of the refrigerator.

　　[2] Pipes and boxes are reinforced and secure

　　It is necessary to check whether the connection reinforcement between the outer pipe of the adjustment and the box is loose, so as to avoid resonance when the compressor is working. Therefore, the outer pipeline must be fixed well, and spring washers must be added to the bolts to prevent them from loosening.

　　【3】The compressor base must be firmly installed

　　If the noise is significantly reduced after pressing the compressor tightly with your hand, and the noise increases when you lift your hand, it is usually caused by uneven force on the vibration-damping rubber pad fixed at the compressor base or loose bolts, or the compressor bottom plate is not strong. The connecting bolts should be adjusted and tightened and the washers that have lost their elasticity should be replaced.

　　【4】Use rubber blocks to suppress pipe vibrations

　　If the refrigerator makes a lot of noise during use, you can take a scrap bicycle tire and cut it into a circular shape with a diameter of 30 mm. Cut a round hole with a diameter of about 5 mm in the middle, and then cut it from the outside to the center so that the rubber can be attached to the tube. When the refrigerator compressor is running, touch the pipes with your hands. If the pipes feel shaking, you can put a few of these rubber blocks on them. A refrigerator needs 10-20 rubber blocks, and the noise will be reduced immediately. This is because the rubber block dampens the "resonance" produced by the vibration of the tube.

　　【5】The back is at a certain angle with the wall

　　Make the back of the refrigerator and the wall form a certain inclination angle. After the back surface and the wall form an inclination angle of 1-3 degrees, the opening of the refrigerator will be large on one side and small on the other side, showing a trumpet shape. The larger side emits more noise and should face the object ； The smaller side produces less noise and should face the activity area of ​​people.