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    Glow Worm boiler control board SYMSI7.0

    I'm trying to change the control board in my boiler (because I periodically get a fault code). The controller is a SYMSI7.0 but I notice on the web that there are slightly different part numbers e.g. 0310144400015 <- my original board 0310144400R18 0310144400S20 Eyeballing these boards the...