A washing machine that shakes, vibrates, or walks across the floor during spin is not just annoying — it is actively damaging itself. Every violent spin cycle accelerates wear on bearings, seals, and the drum assembly. Here are the four most common causes, from the free fix to the most expensive, and what each costs in Los Angeles.
A violently shaking washer is one of the most urgent washer repair calls we get at A&Y Appliances. The shaking itself causes secondary damage: it wears out shock absorbers, cracks the outer tub, loosens water hose connections (risking a flood), and in apartment buildings it vibrates through the floor into the unit below. The good news is that two of the four most common causes are things you can check and potentially fix yourself.
Every front-loading washer ships with 3-4 steel transit bolts that lock the drum in place during transportation. These bolts prevent the drum from swinging inside the cabinet and getting damaged during shipping. They must be removed before the first use. If the delivery team or installer forgot to remove them, the drum cannot move on its suspension system during the spin cycle. Instead, the entire machine vibrates violently because the drum's movement transfers directly to the cabinet.
How to check: Look at the back of the washing machine. You will see 3-4 round plastic caps or exposed bolt heads spaced evenly around the rear panel. If you see bolts (usually 14-17mm hex heads) rather than covered holes or plastic caps, the transit bolts are still installed.
DIY fix: Use a wrench or socket to remove the bolts. Keep them — you will need them if you ever move the washer. Install the plastic caps that came with the washer (they should be in a bag taped to the power cord or drain hose). The shaking will stop immediately.
Cost: Free. However, if the washer has been running with transit bolts for weeks or months, the shock absorbers may be damaged from the excessive vibration and may need replacement ($180-$300).
A washer that sits unevenly on the floor will shake during the spin cycle regardless of its mechanical condition. The drum spins at 800-1,400 RPM — even a small imbalance is amplified at those speeds. Similarly, overloading the drum or washing a single heavy item (like a comforter or a single pair of jeans) creates an unbalanced load that throws the drum off-center during spin.
How to check leveling: Place a bubble level on top of the washer, both side-to-side and front-to-back. If the bubble is not centered, the washer is not level. Push down on each corner of the machine — if it rocks, a foot is not making solid contact with the floor.
DIY fix: Most washers have adjustable front feet and self-leveling rear feet. Turn the front feet clockwise to lower or counterclockwise to raise. Once the front is level, tilt the machine forward about 2 inches and let it drop back — this engages the self-leveling rear legs. Tighten the lock nuts against the base to secure the feet in position. For ongoing balance issues, distribute laundry evenly around the drum and avoid washing single bulky items alone.
LA apartment note: Many LA apartments — especially older buildings in West Hollywood, Koreatown, and Silver Lake — have uneven laundry room floors. Anti-vibration pads (rubber or foam pads placed under each foot, available for $20-$30 at any hardware store) can significantly reduce vibration transfer to the floor. These are especially important for stacked washer/dryer units in apartments where the elevated center of gravity amplifies vibration.
Cost: Free (DIY) or just the $85 diagnostic if you want a technician to level it properly.
The drum bearings allow the inner drum to spin smoothly inside the outer tub. Over time — typically 5-10 years with regular use — the bearings wear down. When they fail, the drum develops play (wobble) that causes shaking during the spin cycle. You will also hear a rumbling, grinding, or roaring noise that gets louder as the spin speed increases.
Shock absorbers (on front-loaders) or suspension springs (on top-loaders) dampen the drum's movement during spin. When these wear out, the drum swings too far during the initial spin-up phase, causing the washer to bang, shake, and sometimes walk across the floor. A dead giveaway is if the washer only shakes at the beginning of the spin cycle — as the drum reaches full speed, the centrifugal force may stabilize it temporarily.
How to check bearings: Open the door (front-loader) or lid (top-loader) and grab the top of the inner drum. Try to lift it. There should be minimal movement — no more than 1-2mm. If the drum lifts noticeably or makes a clunking sound, the bearings are worn. Spin the drum by hand. It should rotate smoothly and quietly. Grinding, scraping, or roughness indicates bearing failure.
LA hard water factor: Los Angeles hard water (12-16 grains per gallon) accelerates bearing wear significantly. Mineral deposits from hard water work their way past the bearing seal, contaminating the grease and scoring the bearing surfaces. In our experience at A&Y, washers in LA homes without water softeners need bearing replacement 2-3 years sooner than identical machines in areas with soft water. We see bearing failures at 4-5 years in heavy-use LA households — well short of the expected 8-10 year lifespan.
Professional cost: Shock absorber replacement: $180-$300. Drum bearing replacement: $250-$450. Bearing replacement on front-loaders is labor-intensive — the entire tub assembly must be removed and split. This is not a DIY repair. A&Y carries common bearing kits for Samsung, LG, and Whirlpool front-loaders on our trucks for same-day repair.
This is the most common cause of violent shaking in Samsung and LG front-loading washers that are 3-7 years old. The spider arm (also called a drum spider or flange) is a three-armed aluminum bracket that bolts to the back of the inner drum and connects it to the shaft and rear bearing assembly. It is the structural connection between the drum and the drive system.
Samsung and LG use an aluminum alloy for the spider arm that is susceptible to galvanic corrosion — a chemical reaction between the aluminum spider and the stainless steel drum in the presence of water and detergent. Over time, the aluminum corrodes and weakens. The arms develop cracks at the base where they connect to the central hub. Eventually, one or more arms snap completely. When this happens, the drum is no longer centered on the shaft, and it shakes violently during every spin cycle.
Why it's worse in LA: Los Angeles hard water contains high levels of dissolved calcium and magnesium. These minerals increase the electrical conductivity of the water, which accelerates the galvanic corrosion process between the aluminum spider and the stainless steel drum. Additionally, many LA homeowners use liquid detergent (which is more corrosive to aluminum than powder detergent) and hot water cycles. This combination makes spider arm failure in Samsung and LG washers significantly more common in Los Angeles than in areas with softer water.
How to confirm: Open the washer door and look at the back wall of the inner drum. You may see rust-colored staining radiating outward from the center — this is aluminum corrosion residue. Grab the drum and try to wiggle it. If it moves significantly (more than 5mm in any direction) or makes a metallic clunking sound, the spider arm is likely cracked or broken. In some cases, you can see the fracture directly by looking through the drum holes with a flashlight.
Professional cost: $300-$500 including parts and labor. The repair requires removing the front panel, removing the drum from the tub, replacing the spider arm (and usually the rear bearing and seal at the same time since the tub is already apart), and reassembling. This is a 2-3 hour repair. At A&Y we recommend replacing both the spider arm and the bearing kit simultaneously — this avoids a second teardown if the bearings fail soon after.
Prevention tip: Use powder detergent instead of liquid in Samsung and LG front-loaders. Powder detergent is less corrosive to the aluminum spider arm. Run a monthly drum-clean cycle (many Samsung and LG models have a dedicated "Tub Clean" or "Self Clean" cycle) to flush detergent and mineral residue. These steps can extend spider arm life by 2-3 years.
Stacked washer/dryer units are extremely common in Los Angeles apartments, condos, and townhomes where floor space is limited. These units present unique challenges when the washer develops a shaking problem. The elevated dryer on top raises the center of gravity, which amplifies vibration. A shaking problem that would be mild in a standalone washer becomes severe in a stacked configuration — the entire stack can rock and potentially tip.
Repairing the washer in a stacked unit also costs more because the dryer must be removed first to access the washer's rear panel and internal components. This adds 30-60 minutes of labor to any repair. At A&Y, we commonly service stacked units in apartments across Santa Monica, West Hollywood, Downtown LA, and Glendale. Our technicians carry the stacking brackets and tools needed to safely separate and reassemble stacked units.
| Cause | Cost (LA Area) | DIY? |
|---|---|---|
| Shipping bolts left in | Free (or $85 diagnostic) | Yes |
| Leveling / unbalanced load | Free (or $85 diagnostic) | Yes |
| Shock absorbers | $180 - $300 | No |
| Drum bearings | $250 - $450 | No |
| Spider arm (Samsung/LG) | $300 - $500 | No |
| Stacked unit surcharge | +$50 - $100 | N/A |
Stop using a shaking washer and call for repair immediately if you notice any of these warning signs:
Water under the machine. Violent shaking can loosen water supply hose connections. A burst supply hose can flood a home in minutes. If you see water, turn off the supply valves behind the washer immediately.
Metallic scraping or grinding sounds. This indicates metal-on-metal contact inside the drum assembly — likely a broken spider arm or severely worn bearings. Continued operation will score the outer tub surface and potentially crack it, turning a $300-$500 repair into a machine replacement.
The machine walks across the floor. A washer that moves during spin can pull water supply hoses, kink the drain hose, or tip over. In stacked configurations this is a safety hazard.
Burning smell. If the drum is rubbing against the cabinet or a damaged bearing is overheating, you may smell burning rubber or hot metal. Stop the machine and unplug it.
$85 diagnostic applied to repair · OEM parts · Written estimate · 7 days a week throughout LA County.