Thought I would join this forum to pick up anything on the VP2 pro plus. I have had the kit for 4 years and up until now it's worked fine. I have a malfunction on my Solar readings which I suspect could be moisture/rain ingress. I just want to know if my problem sounds like water/moisture or is it the actual sensor which costs close on £200 over in England - I see it's closer to £75 or about $140 in the US. I don't think it's the ISS, or connections in here, but I do suspect water somewhere.
Symptoms - high readings of the order 1700WM, then dashed, or no readings, back down to as low as 20WM over a period of a few hours and values at night too, when if working correctly should give 0WM. After a few days the instrument settles down and gives normal solar reading for the time of year at my latitude.
Are these symptoms consistent with a failing sensor?
would you expect any reading at all if the sensor was at fault?
How long would you expect a sensor to give reliable service
would you get varying readings like this with sensor that was faulty?