On Friday, July 10, 2015 at 9:22:56 PM UTC-5, T wrote:
Hi All,

Have a Kenmore 17572201 dishwasher. Yesterday, during
the agitate cycle, it has decided to buzz/vibrate.
Seems to be coming from everywhere. After it run for
a while, it slowly quiets down (not abrupt). Dishes
clean up right nicely. Have tried it on an empty
cavity and no symptom change.

Stop it and look inside and all the arms have moved
and water is dripping off everywhere. All the arms
spin freely.

When it drains and when it fills, it sounds normal.

Any words of wisdom?

Many thanks,
-T

Run it a few more times with dishes and see if it buzzes every time. Maybe there was just some thing loose that was causing the noise.