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l have a ferroli he 31 boiler with fault 37 ?

I have tried opening both valves no joy.It only seems to happen when i put the central heationg on
Carole Taylor, October 2008
Same here. Calling the Gorgi guy who fitted it a few months back. I will post the resolution (if there is one)

RB, December 2008
link Click here to see other fixes for Ferroli.