How to Fix a Washing Machine That Shakes Violently

A violently shaking washing machine is usually caused by an unbalanced load, unlevel machine, or worn shock absorbers that can be fixed by redistributing clothes, leveling the unit, or replacing damaged parts.

1. Balance the Load First. Immediately stop the washing machine if it's shaking violently. Open the lid or door and redistribute the wet clothes evenly around the drum. Heavy items like towels or jeans often clump together on one side, creating an imbalance. Separate these items and spread them around the drum manually before restarting the cycle.
2. Get Level and Stay Put. Place a level on top of the washing machine from front to back, then side to side. If the bubble isn't centered, the machine needs leveling. Most washers have adjustable front legs that you can turn with a wrench. Raise or lower each leg until the machine sits perfectly level. The back legs usually self-adjust when you tip the machine slightly forward and set it back down.
3. Stabilize the Base. Check that your washing machine sits on a firm, level surface. Wooden floors, especially older ones, may flex under the machine's weight and movement. If the floor feels bouncy, place a piece of 3/4-inch plywood under the entire machine. Make sure the plywood is larger than the machine's footprint and perfectly level.
4. Tighten All Contact Points. Look under the machine to ensure all four feet are making solid contact with the floor. Adjustable feet should be screwed down until snug but not over-tightened. If any foot appears damaged or worn, replace it. Lock nuts, if present, should be tightened against the machine base to prevent the feet from moving during operation.
5. Inspect the Shock System. Remove the front or rear panel of your washing machine according to your model's design. Locate the shock absorbers or struts that connect the tub to the machine frame. These should move smoothly and show no signs of oil leakage or damage. If they're loose, tighten the mounting bolts. If they're leaking or damaged, they need replacement.
6. Replace Broken Springs. Look for the metal springs that support the washing tub from above or sides. These springs should be intact and properly connected at both ends. A broken or disconnected spring will cause severe shaking. If you find a damaged spring, replace it with an exact match from your machine's manufacturer.
7. Respect Load Limits. Even with proper distribution, too much laundry will cause shaking. Follow your machine's capacity guidelines, typically 75% full for optimal performance. Heavy items like comforters or sleeping bags may exceed your machine's capacity even if they fit physically. Consider using a commercial laundromat for oversized items.
8. Listen for Internal Damage. With the machine empty and unplugged, manually spin the drum. It should turn smoothly and quietly. Grinding, squealing, or excessive wobbling indicates worn drum bearings or a loose tub assembly. These are major repairs that typically require professional service or replacement of the entire machine due to the extensive labor involved.