While you wait for answers, we may have found some information which could help you.
Click here for Hot Tap Turned Cold
ravenheat csi 120 no hot water?
ravenheat csi 85 b (t) hot water no central heating?
ravenheat csi 85(t) 780 series red light flashing?
What is wrong with my ravenheat white star combination boiler,?
how can i ignite the pilot light on a ravenheat boiler?
Central heating but no hot water?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.