Hi, I hope i can ask my question to you in english (i'm from Belgium) Did you have already found an solution for the problem with the wire and that the heatpump don't return to status 2 as long as the wire 143.5 is conected? I have the same problem (vitocal 151-A) and already started my own topic: https://www.viessmann-community.com/t5/Waermepumpe-Hybridsysteme/Smart-grid-vitocal-151-A-not-working/td-p/364429 thanks and regards
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