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Today : 13/03/10... Tony, further to my earlier note, I wanted to give an update... Today the heating worked after I put the water temp on high and lowered the CH temp, it worked for a long long time. Tried again this evening, unfortunately didnt start at all... Now error is showing S.97...

Thanks Tony for your quick response. Right hand side display shows 5.0 Rad knobs all turned up All external controls calling for heat Dont understand the technical term of terminals 3 and 4, if you can try to explain? Regards. Suzie05

My EcoTech plus 834 boiler seems to have packed up the heating, showing the Summer Active Mode, showing code 5.0 and 5.3.1, although I have hot water. Can someone tell me how to switch it back to normal winter Active Mode, and i have magnaclean fitted after the whole system had a powerflush...