We may have found other answers which could help you.
Click here for Boiler Fault Ravenheat
ravenheat csi 85(t) 780 series red light flashing?
Central heating but no hot water?
What is wrong with my ravenheat white star combination boiler,?
csi 85t ravenheat no power at fan?
pressure dropping on openning the hot water in my ravenheat csi 85 aboiler?
Faulty Ravenheat condensing boiler?