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PRO 21 09
A Kenmore Elite washing machine should operate with some normal sounds, including water filling, draining, tumbling, and the motor changing speed. However, a persistent knocking noise is different. If the washer begins banging, thumping, or knocking during the wash or spin cycle, the cause may involve the suspension system, drum bearings, or another mechanical component. Ignoring the noise can allow a relatively manageable problem to become more expensive. A loose or worn component can place additional stress on the tub, motor, belt, and other parts. Identifying when and how the noise occurs can help a technician determine where to start the inspection.

When Does the Knocking Noise Occur?

The timing of the noise provides useful diagnostic information. If the washer knocks mainly during high-speed spinning, an unstable tub or suspension problem may be involved. Kenmore Elite washers use shock absorbers to control tub movement. When these components become worn, the tub can move excessively and strike surrounding parts. A knocking sound that appears when the washer changes from a slower speed to a faster spin can also indicate that the suspension is no longer controlling movement properly. The problem may become especially noticeable with heavier loads. If the noise continues throughout the wash cycle and seems connected to drum rotation, the drum bearing deserves attention. A damaged bearing can produce grinding, rumbling, knocking, or other unusual mechanical sounds.

Worn Shock Absorbers Can Cause Heavy Banging

Shock absorbers are designed to reduce movement of the washer tub. Over time, they can weaken or become damaged. When that happens, the tub may bounce or shift more than it should. You may notice several symptoms:
  • Knocking or banging during spin
  • Excessive tub movement
  • The washer shaking across the floor
  • Uneven loads becoming difficult to balance
  • Strong vibration at higher spin speeds
A worn shock absorber does not necessarily mean the entire washer needs replacement. A technician can inspect the suspension components and determine whether one or more parts need to be replaced. It is also worth checking whether the washer is level and whether the load is properly distributed. An unbalanced load can create temporary banging even when the suspension is functioning normally. If the noise repeatedly occurs with different loads, however, mechanical inspection is recommended.

Drum Bearing Failure Can Produce a Different Sound

The drum bearing supports the rotating drum and allows it to turn smoothly. When the bearing begins to fail, the sound can gradually become louder. A bearing-related problem may produce a deep rumbling, grinding, or knocking noise that changes with drum speed. In some cases, you may notice that the inner drum has unusual play when moved by hand. A failing bearing can also cause secondary problems. Continued operation may put additional strain on other components and, depending on the washer’s design, may allow moisture to affect surrounding parts. Bearing repairs can be more involved than replacing an external suspension component because accessing the bearing may require significant disassembly. The exact repair depends on the Kenmore Elite model and the condition of the tub and related components.

Other Possible Causes of a Knocking Washer

Shock absorbers and drum bearings are important possibilities, but they are not the only causes of unusual noise. A loose object trapped between the inner drum and outer tub can create repetitive knocking as the drum rotates. Coins, small pieces of clothing hardware, and other objects can sometimes become trapped inside the machine. The drive system can also be responsible. A damaged pulley, worn belt, loose motor component, or other mechanical issue may create noise that becomes more noticeable as the drum speed changes. Shipping bolts are another consideration if the washer was recently installed or moved. On applicable models, shipping hardware must be removed before normal operation. Leaving it installed can cause excessive vibration and movement. Because several problems can create similar symptoms, replacing a part based only on the sound can lead to unnecessary expense.

What You Can Check Safely

Before scheduling service, stop the washer and check a few basic things. First, make sure the machine is sitting level on a solid surface. Check that the load is not heavily concentrated on one side. If the noise occurs only with a particular oversized or heavy load, redistribution may solve the immediate problem. You can also inspect the drum for obvious foreign objects. Do not reach into areas that require disassembly or attempt to remove internal components without the appropriate tools and knowledge. If the washer continues knocking while empty or with different loads, avoid repeatedly running high-speed cycles to see whether the sound disappears. Continued operation with a damaged mechanical component can increase wear.

When Professional Appliance Repair Is Needed

A persistent knocking noise deserves attention, particularly when it is accompanied by strong vibration, drum movement, grinding, leaking, or changes in spin performance. A professional technician can inspect the suspension system, drum bearing, drive components, tub, and other potential sources of the noise. The technician can also determine whether the repair is practical for the specific Kenmore Elite model. Accurate diagnosis matters because the same symptom can have very different causes. A washer that needs a shock absorber replacement requires a different repair from one with a damaged drum bearing or drive component. If your Kenmore Elite washing machine is making a knocking noise, contact San Diego Appliance Repair Service for professional appliance repair. Call (619) 719-5005 to schedule service and have the washer inspected before a minor mechanical issue develops into a larger repair.