Thanks Doug, I thought you may be at work, so I just made a general post. I have TEC on and -10 set in prefs, it's actually sitting around -9.4 on Neb at the moment. Doesn't worry me, I was just curious. You were using 'QHY9' in your reply, not sure if you were just confused, but I did a quick QHY9 temp adjust as I typed, and sure enough, it's on its way to 15, and magically the new set point in prefs has changed to -15 too!
It has stopped at -16.9 and is returning towards 15, so all seems under control.
It seemed to have a mind of its own earlier this afternoon, but seems pretty sensible now. far in excess of my abilities anyway
Cheers,