Hi OutdoorSmoker;
Welcome to the forum.
It is possible that it could be the short jumper cord, or a problem with the generator, such as a loose wire. More information would be useful.
Which Original Bradley model did you acquire? The one with the heating adjustment on the generator, or the one with the heating adjustment below the cabinet door?
When the generator is plugged in and the power turned on; is there any power lights on?
When the generator is plugged in and the power turned on; does the bisquette burner work?