While you wait for answers, we may have found some information which could help you.
Click here for Water Problem CostingFaulty Ravenheat condensing boiler?
csi 85t ravenheat no power at fan?
how can i ignite the pilot light on a ravenheat boiler?
Central heating but no hot water?
Faulty Worscester 35 CDi loosing pressure?
ravenheat csi 85(t) 780 series red light flashing?