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