It is not unusual to have a small amount of vibration at the beginning of the spin cycle, but this should virtually disappear by the time the spin speed gets up to medium (about 400 RPM). Furthermore, some noises are normal and can be reduced by properly leveling the washer. If the noise you're hearing at the start and end of the cycle sounds a bit like metal balls hitting each other, they are the ball bearings in the Vibration Reduction Technology rings that are shifting their positions; this noise is normal.
I would suggest reviewing the leveling procedure to make sure your WF328 is set up to maximize the benefits of the Vibration Reduction Technology. Click on the link below to open the Troubleshooting Guide, then select "Installation ► Installation Procedure ► STEP 5 Leveling":
http://support-us.samsung.com/cyber...Thank you,
Ms. Samsung
answered 2 years, 4 months ago

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MsSamsung
SamsungHQ