[wingnut60]

Also, year of trailer?

On my '05, there is a circuit breaker inside the battery compartment, mounted on the right side wall--the positive cables go to it. If it is there, might be a 'small black button' on the side of the breaker, look real good at all 4 sides with a good light. If it is there, push it in to reset.

And there is a battery isolation switch in the hydraulic leg control panel--it should be pulled out for proper battery operation. Pushing it in turns off the 12 volt power to the trailer.

Also wishing you good luck with the new trailer.

Joe