OK, I unscrewed the thing and saw the shaft inside not moving so I gently poked at it with my screwdriver and it started turning intermittently, I carried on poking it a little and it started turning even more, water bubbling so I screwed it back up and checked the boiler. The boiler is now...
Hello,
Completely clueless about all things plumbing so please be patient and any advice will be gratefully received.
CH and Radiators were working fine yesterday but this afternoon all radiators failed to come on.
We have a fairly old back boiler and have no instructions on how...