Recent content by HelenDen

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    Vaillant EcoTec taps to add pressure

    So I have a F.75 error code on my Vaillant ecotech plus and my pressure gauge is low. I watch the you tubes videos of what to do and it seems straightforward. Except I have no taps to turn under my boiler. They are just not there. Any advice on how I get heat tonight? What can I use to open...