The national standard noise is less than 45 decibels.
Noise causes:
1, placed on the level is not adjusted: the simple way is not obviously tilted left and right, before and after the door will not be natural switch.?
2, four feet are not all on the ground: adjust the level at the same time attention.?
3, the compressor itself is working noisy: obvious knocking sound if it is a failure.
4, other parts fixed loose: can see is the box piping.
5, water flow and gas filament sound: normal.?
6, bottles and boxes in the refrigerator **** vibration: move the position of the items.?
7, the environment **** vibration: refrigerator to move a little position, or the top of the appropriate weight.
Maintenance
Regardless of whether there is a leak in the system, the concentration of isobutane in the area of all the electrical parts of the ignition can not reach the explosion limit. Because isobutane is heavier than air, good ventilation is required at the service site. When filling refrigerant, in order to avoid possible static electricity and thus sparks, it is required that all equipment must be reliably grounded, and all wiring must be firm, absolutely no misconnection is allowed.
a. First check the surrounding environment for ignition sources, and maintain good ventilation;
b. Prepare the maintenance equipment and accessories;
c. Check the safety of the maintenance equipment and power supply