All,
My parents had a nest system installed a few weeks ago and there is something odd going on with the 2 port valves.
There are separate valves for HW, downstairs rads and upstairs rads. The thing I find odd is that even when there is no demand, there appears to be current going to the valves. Also, I have noticed that the levers sometimes feel completely floppy, as if they are not connected to anything. I took the cover off one of them and it stiffened up, put the cover back on and it went floppy.
Any thoughts on what might be going on here?
Many thanks