Thanks to all who replied. The center pin looks ok and I think the power supply is good because everything operates as normal except for the error message and the "window" staying lit all the time. I tried connecting my 12V power supply and got the same error message so I guess the problem is in the...

I am getting an error message in the window of my Airsense 10 Auto. It says "Attention: The electrical connection at the rear of your device is not fully inserted". I have checked it and unplugged and re-plugged several times. I am sure it is fully inserted but I cannot find a way to make the messag...