Symptoms
- Machine rocks or bangs during spin
- Machine has visibly moved from its original spot
- Loud thumping noise during high-speed spin
- Shaking is worse with heavy or single-item loads
Likely causes
- CommonUnbalanced loadA load bunched on one side of the drum creates uneven weight distribution during spin.
- CommonMachine not levelAll four feet need to sit firmly on the floor; an unlevel machine amplifies vibration.
- CommonShipping bolts not removed (new installs)Bolts meant to hold the drum still during transport must be removed before use or they cause severe shaking.
- PossibleWorn suspension springs or shock absorbersThese components dampen drum movement and wear out over years of use.
- PossibleFloor itself flexing or uneven under the machineA springy or sloped floor can make even a properly leveled machine seem to shake.
What to do
- Pause the cycle and redistribute the load evenly, avoiding single heavy items washed alone.
- Use a level on top of the machine and adjust the leveling feet until it sits flat and doesn't rock when pushed at each corner.
- If newly installed, check the manual for shipping bolts at the back of the machine and remove them if still present.
- Make sure the machine has firm contact with the floor, adding a plywood base if the floor itself is uneven or springy.
- Reduce load size for very heavy items like comforters, which are prone to bunching.
- If shaking continues despite a level machine and balanced loads, have a technician check the suspension springs or shocks.
Tools and parts
- Level
- Wrench
Washer suspension springs or shock absorbersSearch: “washing machine suspension spring shock absorber”
When to call a pro
If leveling and balancing loads doesn't stop the shaking, an appliance technician can check the suspension springs or shock absorbers.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.