rayxxxxx

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I’ve got the same issue: buh step 1 and buh step 2 are OFF when the backup heater is ON.

I've got the Altherma 3 H HT ECH2O too and I installed ESPAltherma and all works fine ![IMG_0444](https://user-images.githubusercontent.com/96043494/235285678-ce0b8359-524f-485e-af43-c7584407b24d.jpeg)

> > 've got the Altherma 3 H HT ECH2O too and I installed ESPAltherma and all works fine > > @rayxxxxx May i ask you which definition file you...