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                                            syntos

Vailant Heat Pump Controller displays "Communication Fault" when adapter is connected

I'm havind the same error. I'm using the latest V6.1 version. Can I power the adapter using the USB-C port? Should I make some changes to the PCB? e.g. cut...

Vailant Heat Pump Controller displays "Communication Fault" when adapter is connected

I've found this already but I'm not sure how to connect the external power supply. Is it possible to power the V6.1 version using the UCB-c port without any modifications...