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Hello, I have a Samsung wireless thermostat that I want to fit to my combi-boiler, I'm just not sure where to start. I'm pretty handy with electrics, just don't understand all the different symbols for the boiler system. Just a some understandable guidance would be much appreciated. Also...

Cheers for the info, It turned out to be the CH thermistor which was reading bugger all, didn't have continuity either. Thanks again, much appreciated! Andy

Morning, All I have done is take the DHW heat exchanger off and let some limescale remover sit in it and flushed it out and refitted, some crap came out but made no difference. If you mean the central heating thermistor, I have not tested it or replaced it. I have disconnected it and it...

Hello, My boiler has been getting progressively worse and worse and I'm literally getting just cold water out the hot tap now. the diverter valve seems to be working fine, and i tried putting some limescale remover in the secondary heat exchanger after cleaning out the central heating system...