So I ve checked the CO settings using the following procedure:
Press and hold select + reset button, select CO setting. CO1 shows a small zero in the upper right corner. When selecting CO1 bottom right shows value 6.
CO2 shows a small zero in the top right corner. Selecting setting CO2 shows a zero ad the bottom right. I havr absolutly no idea what this means and what the normsl values are or what they stand for. Anyone sees a problem with these values? Thank you