My HW comes on no problem but my CH only comes on for a few minutes then turns off. I've checked the stat and all is good there, so I'm thinking its the valve and its sticking.?
The motor in the valve seems to work as when I turn the HW off from the programmer I can see the valve (cogs and all) moving.
When I try and move the manual lever either from manual to auto or vice-versa there is no resistance at all. (I'm sure there should be resistance one way at least?).
So is my thinking correct that the valve is likely to be sticking? and if so can it be unstuck? or does it need to be replaced?
I've uploaded a picture of the Valve and the back plate showing the model for reference.
The motor in the valve seems to work as when I turn the HW off from the programmer I can see the valve (cogs and all) moving.
When I try and move the manual lever either from manual to auto or vice-versa there is no resistance at all. (I'm sure there should be resistance one way at least?).
So is my thinking correct that the valve is likely to be sticking? and if so can it be unstuck? or does it need to be replaced?
I've uploaded a picture of the Valve and the back plate showing the model for reference.