Hi ive been trying to sort my boiler out i think its out of my league but i want to know if its fixable so the flame failure light keeps flicking into gear i can hear it rumbling but never actually fires this is after the point of it going through constantly trying to fire then eventually doing it say a 1 in 20 oddly enough hitting brought few results boiler wise at least and if it is fixable what do you think the problem is would love to hear your ideas

Luke, November 2011

It is fixable, But as to the cause, difficult to diagnose on info. Check pressure, check 3 way valve check pump, after that comes down to sensors. BUT

SD, November 2011