the pump is in the airing cupboard (above the stairs) with the "mid position actuator". The 3 pipes that go into it all heat up when i put the hot water on. Its got a little push in button that doesn't appear to do anything on the side and a button that slides on the end - what do these do...
The upstairs radiators in my house heat up when i have the water heating on. The heating system is about 15 yrs old, someone has said to me that the y plan valve needs to be replaced. Is this correct and how do i do it?
Chris