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My ravenheat 100 won't fire up?

Boiler has been working fine since moving in 3 weeks ago,but noticed the water wouldn't heat up. And noticed the auto air vent is passing, would this cause the boiler not to fire up? Have ordered. New one. Also the pilot light is out does this come on an off as req or should it always be on? If so how do I relight the pilot light? Any advise would be great.
Boycy007, June 2012
check your pressure is at least 1 bar
can you hear the pump & fan spinning?
could be blocked pilot injector?

manwithnoname, June 2012
link Click here to see other fixes for Ravenheat.