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vr21

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    Replaced Vaillant VR21 with VRC DCF (9535) not working

    Hi, I have a Vaillant heating system at home (Ecotec Plus, VRC470f, VR61) and because I've been repletely facing issues with the VR21 wireless outside sensor (dies every 2 - 4 years) I installed a wired VRC DCF (9535) to replace the VR21 sensor. The new sensor is properly installed and detected...
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