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safety thermostat closed circuit and ntc stat reading 13.6K ohms which sounds about right......Help??????

safety valve modulation reading 76 ohms ???? Is this correct anyone.

When in either DHW or CH boiler, when turning power onto boiler the flame boiler flame neon lights, by pressing reset button this then goes out allowing the boiler to start up. Neon lights and getting sparks at burner then get flame failure. In past few weeks replace main control and igntion...