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how can i fix my vokera unica 28 boiler ?

boiler firng but isnt burning all the gases and making a banging noise ?
nathaniel eddleston, April 2009
Your boiler is in need of a full service as it sounds like the soot build up is considerable. I think you should shut it down until it is sorted. I don't like the idea of unburnt gases at all.

John, April 2009
link Click here to see other fixes for Vokera.