Hi, I am at a loss, I just replaced LQ trailer batteries that would not hold a full charge, with 2 new fully charged Interstate 12 volt batteries, copied wiring diagram before unhooking the old batteries, re-wired back same as before; everything starts, generator, AC, heat, lights, refrigeration, except for the electric jack. Electric jack is wired directly to one battery, jack worked prior to new battery replacement. There is no burn smell, all electric jack connections are clean.

Any ideas of what I need to check, do next?                Thank you, MsSilver

Could be a bad ground or a blown fuse.

Hi, I have checked all fuses none are blown, also none are labeled for electric jack, any idea where that fuse might be?

Also bad ground wire? Where would I check on that?

Thanks.