While you wait for answers, we may have found some information which could help you.
Click here for Ravenheat Rsf 82etravenheat csi 120 no hot water?
how can i ignite the pilot light on a ravenheat boiler?
What is wrong with my ravenheat white star combination boiler,?
csi 85t ravenheat no power at fan?
Faulty Worscester 35 CDi loosing pressure?
Central heating but no hot water?