Many thanks for this. I followed your instructions until "press star". I don't have a "star" button either on the Arte itself or on its remote. After thinking about the next step I (perhaps rashly) pressed the "start/play" button and the display changed to "r 40". I then followed your subsequent instructions with a sheet of white paper, pressed mode and the number did change. I turned the device off and then back on and started it. Unfortunately, it behaved as it had before by stopping and displaying "C2" error code. Any thoughts about how I might troubleshoot this further?

Within 3 minutes of the Iclebo beginning to vacuum, it stops with a C2 Error "Cannot Detect Floor" regardless of what floor it's on (hard wood or carpet). It's difficult to get rid of this error and when I am able to get rid of it, it returns almost immediately. Any suggestions as to a remedy?