Dometic Fridge Question - 2015 Pleasureway Excel

[OSCA]

Hi there,
I am stumped and hope someone here can help me out!

I bought a 2015 PW Excel last year and had some great trips. Getting ready for the summer vacation, noticed that the fridge is not working (see below) and self-diagnosed that the control unit has died.

Looking for a replacement control unit, the guys at Dinosaur Electronics were incredibly helpful and told me that my model fridge (Dometic RM8505) was a European model and the control unit (P-870) was only sold in Europe, no spare parts at all in the US.

I am trying to find the spare board via the European Dometic distributors but I wonder if someone here on this forum had the same issue and can help. Apparently, PW installed European Dometic models for a while, so there should be a few out there....

Many thanks, really appreciate all the support and advice here!

PS. Fridge behavior: On-button does nothing. Shore-power button press lights up the front panel and "clicks" a relay / solenoid in the back. Letting go of the button, everything goes dark again.
PPS. Dometic USA hasnt replied to emails yet.