GeorgeTar

P.S. I check the two units at work and they don't have this issue....

I also have the same problem with my S3. Also the Hotend and they light up blue as well. I called service, the tech said it's the internal fans, I verified they are not running, another remark was "if it's working, it's alright". Can't stand the height pitched noise! I'm going to call them again to resolve this issue.