Svar till: Corruption with r34 (heating curve)

Yes, the issue was that the min ”curve” (minimum water temp for return line) was bigger than r34 curve value I was commanding, so the r34 (curve) got underflow inside the pump. Has not happened anymore. I also made a rationality check, it read the r35 (min temp), and adds +1, and uses that as the minimum clamp for the r34.

So basically, next is to try that hot water optimization again, because that was not the issue. But this will take some time since I have to go for a 2-3 week work trip and I don’t want anything funny happening with the system when I’m gone (even though I have remote connections etc).