Bladevane
Forum Supporter
- Messages
- 1,003
- Location
- Harwell, Oxon
We've just gone "Hive" but this problem existed before. If the HW tank stat. is calling for heat at the point the timer shuts off the boiler, when the timer switches on for CH only the 3 way valve remains in the position where all the output from the boiler goes to the hot water tank. It only moves over to shut off HW and open up to CH when the HW timer switches on. I believe I am missing a connection between the controller and the 3 way valve. Or maybe not. I would really appreciate a knowledgeable reply. Thank you.