Have to supply the same may call customer service because the drum has an imbalance, I guess, the rolling bearing is defective. That's very annoying if the part has been damaged during transport or even as rolled off the assembly I can not say. The dumbest of the story is that one waits 1Week on customer service ...
An otherwise the device is nice and quiet, and consumes only half power of our old condenser which makes the year in our household about 300 less.