Location of Converter

On my last 2 rigs, the converter was located under or near the central electrical panel inside the trailer. To see it, remove the control panel cover and you should be able to see the converter. On bigger units I have also seen the converter in a compartment near the batteries. On your Blue Ridge I don't know but you shouldn't have much trouble finding it. When they warm up, the fan kicks on which might help you find it's location.