Have a primary condensing boiler. Red light on front is flashing and the fan and pump are running. Hot water does not work and would welcome ideas to rectify.

bibi, May 2011

when i put hot water tap on after 20 second red light comes on and flames goes off

akmol, August 2011

what model ravenheat boiler is it?

does CH work?

if fan & pump work
can you hear it sparking?

need more information to properly diagnose problem

on most ravenheat boilers
the problems tend to be:-

CH & DHW thermistors
air pressure switch
ignition control board
ignition lead attached to condensate trap

i would need to eliminate these first to find out cause of problem

manwithnoname, May 2011