Right. I could not get the ET to work correctly. When I engage nighttime cooling, it would start heating even when the set point is lower than current temp. Turn off nighttime cooling, and solar works correctly.
The only think i ink I didn't try is telling it I had a heat pump. Maybe that is the trick? Till then, I can cool on the nights I want it.
Would be be nicer to be temp controlled though, like we were talking about.