Not totally familiar with your coach, but in all other cases the relay is located under the bed in most coaches. Assuming fully charged batteries, if that relay fails open then your battery power will not get to the 12 volt buss of your power panel. There may also be a circuit breaker in line between the batteries and that relay. If that too has tripped or failed you get no power to the panel 12 volt system. If you check the owners section of Thor website and look at your coach schematics they should help you troubleshoot the electrical issue. Good luck and let us know how you make out.
__________________
|