I am a RGi but I have limited experience on maintenance on old system
sorry i don't understand what is the cc? I understand a system boiler has fewer bits inside than a combi. But modern combi's normally have fault codes on them which point you in the right direction, or I phone tech help which sort most of my problems out or i use a manual.
when I phoned servowarm today all I got was they have stopped selling spare parts.
Thats why I am trying this website. I am a new installer and I might be asking a simple question, but is it not better to ask people who may of come across this problem before..
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