While you wait for answers, we may have found some information which could help you.
Click here for Problem Fire IdeasWhat is wrong with my ravenheat white star combination boiler,?
ravenheat csi 85(t) 780 series red light flashing?
Central heating but no hot water?
Faulty Ravenheat condensing boiler?
how can i ignite the pilot light on a ravenheat boiler?
ravenheat csi 85 b (t) hot water no central heating?