While you wait for answers, we may have found some information which could help you.
Click here for Boiler Central HeatingWhat is wrong with my ravenheat white star combination boiler,?
how can i ignite the pilot light on a ravenheat boiler?
Ravenheat CSI 85 Red Light?
ravenheat csi 85(t) 780 series red light flashing?
csi 85t ravenheat no power at fan?
minimal hot water ?