Hi,
I removed the board from the ISS and looked at it completely. There is nothing to see and it is not damped either.
I have restarted the board insinde my house without anything being connected. Even without a plug from, for example, the rain gauge, the measurement rises again very fast.
The strange thing is that I had already replaced the board because of the same problem that occurred a few weeks earlier.
So, something breaks the board and we do not know what this is.
There is an email from my supplier to Davis support to ask for their advice.
A special problem and I will report what was ultimately the cause and what was Davis’ advice.
Brgds,
Oebel