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:D All sorted now it was the valve fitted with no problem. thanks for the help 8)

OH NO IT ISN'T lol I've looked at that and its just a user guide. it doesn't have any part diagrams in or any instructions on how to change parts. :? I have checked the arm on the valve and it doesn't move when the central heating calls for hot water it stays in the up position. i checked...

Hi All Just been reading another post with same prob i will check to see if the arm moves on the valve tonight and check supply voltage as well. are these vaves much to change?

Hi All I have a worc bosch 280rsf boiler the hot water works fine but the central heating does not. when you call for the central heating the boiler fires( fan runs ect) its lights for about 20 secs then goes out. i think it may be the diverter valve stuck or faulty but i could do with some...