I wrote to them Sunday and got an automated message back essentially saying I was in the queue and someone would get back to me. No one did, or maybe is is a veeeeerrrrrrrry long queue, so I called them today. I was told to being it and my receipt to the service centre and they will exchange it. @Kerry Beal did they give you any grief? What I am concerned about us that it doesn't make that grinding noise all the time and if they turn it on and don't hear it, they may not exchange it.