Well, while I don’t have a Valor, I will offer some basic advice.
If you have followed the “Wake” process without any results, the next logical step would be to validate that you have power and ground present at the controller. Have you checked your panel for blown fuses? Are you able to check behind the controller to validate power and ground are present? Remember it is always best to keep it simple and validate the basics first before moving to the more complex solutions.
Best of luck with your back, and please circle back to this forum with your findings so others can learn from your experience.