While you wait for answers, we may have found some information which could help you.
Click here for Working Pump Injectorravenheat csi 85 b (t) hot water no central heating?
pressure dropping on openning the hot water in my ravenheat csi 85 aboiler?
how can i ignite the pilot light on a ravenheat boiler?
What is wrong with my ravenheat white star combination boiler,?
ravenheat csi 120 no hot water?
Faulty Ravenheat condensing boiler?