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    Viessmann Vitodens 100-W & Vitorol 100 UTA -RF Room Stat

    Hi, I've got a problem with our Vitodens 100-W boiler and the Vitorol 100 UTA room stat. I think the batteries died in the room stat, and I have since replaced them with a fresh set. With that said however, the "Signal" light on the boiler is just flashing a sinlge amber led on the low...
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