Daikin AT3 hibernates when connecting 5v

[floriskw]

Hello,

On my unit, ehvx08s23dj6v, I could not get Espaltherma running.
Started to do some monitoring and noticed the heat pump goes in some sort of hibernation state when i connect the 5v cable to my m5stickcplus.
Already tried 6 different Dupont cables, uploaded espaltherma 4 times to the m5stickcplus from the m5stickcplus option in platformio. None of it helps.

As soon as I connect the 5v cable I hear a click. The little screen on the what pump goes to the spaldh screen and shows the Daikin logo + firmware version. And that's all... Unit is not working and not giving any data

Currently have it connected to the USB of the front plate. Everything is working now, but am getting a message that a unknown usb device is connected.

Anyone have any ideas to get the 5v cable on the x10a connector working?