blocked

[brakepipe]

thanks to everyone for their replies, the thread went from my original problem ( blocked) to a disscusion on b band boilers.
today i did as one poster suggested and took the inlet water valve off, stripped it and there's a plastic filter/strainer inside that was almost blocked with shyte, the boiler works perfect again and it cost me nothing only a few hours in a awkward corner,
i have hot water again

 

[expertgasman]

Well done. These posts do go a bit off track.