THUMPING NOISE HEARD AT START OF
Thumping noise occurring at the start of drying cycle then gradually
■ Noise at the beginning of a cycle may be heard when the product hasn’t been used for a long
period of time. Laundry, especially very damp heavy articles, get tangled up in a ball as they are
lifted and dropped inside the tub in the early stage of drying.
■ Tub is also sitting on rollers. Rollers get pressed down and flattened due to the weight of the tub
particularly when dryer sitting dormant for a good number of days.
How to fix
■ Spread out the laundry in the tub. Rest assured the noise will have substantially decreased by
the time the load has dried.
■ Also, flattened rollers will slowly recover returning to their original cylindrical shape with the heat
generated. So, as the tub starts spinning the noise will disappear.
Rollers inside dryer
By design the drum inside a matching washing machine dryer is much larger in size therefore
heavier. As such, for weight support, the drums sit on two rollers. Should these rollers be made
of steel or wood, there would be loud banging noise throughout a cycle being the drum would be
bouncing off the rollers with the tumbling of the load.
Material utilized instead is a solid, spongy cellular material for a very quiet operation while drum
is rotating. The downside however is when the dryer is left stationary for a few days, a week for
example, the weight of the drum crushes the surface of the rollers it sits on flattening only a
Moment dryer is started up the unevenness of these spongy rollers trying to keep up with the
rotation of the drum will create a thumping noise, somewhat similar to driving a car that just
experienced a flat tire.
Within a few minutes, with the heat generated, the spongy type rollers will regain their initial
circular shape for a much quieter operation. So, not to worry about any thumping sound that
may come from the dryer gradually muting itself, especially when appliance is used only
Should all above troubleshooting tips have failed to produce positive results and the unfortunate
situation still persists, then we have no other alternative than acknowledge a mechanical or electronic
fault with the product. If the appliance is still under warranty please contact LG customer service at
1.888.542.2623 for repair options. For out-of-warranty products, still call our customer service to find
out about our One Price repair program.