While you wait for answers, we may have found some information which could help you.
Click here for Water Combi Boiler SecondsWhat is wrong with my ravenheat white star combination boiler,?
ravenheat csi 120 no hot water?
Central heating but no hot water?
how can i ignite the pilot light on a ravenheat boiler?
Ravenheat CSI 85 Red Light?
pressure dropping on openning the hot water in my ravenheat csi 85 aboiler?