Washing machine noise has standard washing machine noise how to solve it?
Washing machine noise standard
The National Mandatory Standard (Draft for review) of “Special Requirements for Noise Limits of Electric Appliances for Household and Similar Uses for Drum-Type Washing-Dryers” limits the noise value of the drying part of drum-type and pulsator washing machines: with The sound power level A-weighted noise of the drying part of the pulsator-type automatic washing machine with drying function shall not be greater than 72 decibels, and the sound power level A-weighted noise of the drying part of the drum-type washer-dryer shall not be greater than 69 decibels , (laundry shall not be higher than 62 decibels, dehydration shall not be higher than 72 decibels).
The introduction of the noise standard for washing machines and dryers has a very positive significance for guiding the sustainable and healthy development of the industry in the future: on the one hand, it can form supervision over enterprises, curb the phenomenon of corporate concept speculation, and better regulate the market Competition order; on the other hand, it can also provide consumers with a clearer and authoritative basis for product purchases and avoid blind consumption.
What can I do if the washing machine is too noisy?
The noise of the washing machine may be caused by:
1. The washing machine is installed unevenly;
2. The motor bearing or the transmission shaft and the bearing are seriously worn or broken;
3. The belt of the drum is too tight;
4. The deformation of the impeller and the friction of the bottom of the washing tub;
5. The dewatering tub touches the outer box;
6. The sealing ring on the drive shaft is too tight;
7. The balance boom of the fully automatic washing machine is out of balance, etc.
The most common concentrated noise problems of washing machines:
1. When washing, the machine makes a “banging” sound. The fault is mostly caused by the collision between the washing tub and the shell, or the uneven ground on which the washing machine is placed, or the four feet are not in good contact with the ground. At this time, it is necessary to adjust the center of gravity of the washing machine, place it smoothly, or place appropriate pads on the four foot pads.
2. When washing, the pulsator makes a “cluck” rubbing sound. When overhauling, you can put water in, but do not put clothes for inspection. At this time, if there is still a “cluck” friction sound when the pulsator rotates, it means that it is caused by friction with the bottom of the washing tub when the pulsator rotates. If you put clothes in again, the sound will be louder. The cause of the failure may be that the screw of the impeller is loose. The impeller can be removed now, and then a gasket of appropriate thickness is added to the bottom end of the shaft to increase the gap between the impeller and the bottom of the barrel. Eliminate collision or friction between the two. If the outer ring of the pulsator rubs the washing tub, the pulsator should be removed and refitted before being installed.
3. When the motor rotates, the rotating belt makes a “crack” sound. The fault is caused by a loose drive belt. During maintenance, loosen the fastening screws of the motor base, turn the motor away from the pulsator shaft to tighten the transmission belt, and then tighten the fastening screws of the machine base.
