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  1. L

    Hive 2 on Vaillant EcoTec Plus 831

    Hi all, apologies, I know all the experts probably get tired of coming to the aid of DIYers. Having a grand total of two wires to move, I didn't expect there to be much of an issue installing. I would appreciate any assistance in getting my Hive to a point where it actually turns on the boiler...
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