Recent content by Minimia

That was really helpful guys - thanks a lot.

Great replies guys - thanks for that. So, we're assuming that the silver Honeywell box should be operating a valve, and it's failing to do that. That kinda makes sense, in a theoretical way. As you say, it seems unlikely the electric control system has died - we're probably talking about a...

Hi there, I've got what seems to be a common problem - when HW is on, the rads upstairs get hot. Not nice, what with the weather we're having lately! I've done some research, mainly on here, and it would seem that I'm having a check valve problem. I've looked at all the pipework in the...