Troubleshooting Electric Trailer Jack that Doesnt work When Not Connected to a Tow Vehicle

Published 01/15/2015

Question:

My jack will only operate when hooked to a vehicle. It will not operate when plugged in to power on my travel trailer???

asked by: Junior H

Expert Reply:

The problem is most likely the ground circuit for the jack. Since most trailers ground to the tow vehicle it sounds like the jack isn't able to ground properly when you are trying to power it with just your trailer.

The jack grounds through it's mounting hardware to the trailer frame. If the trailer isn't grounding to a vehicle like when it is connected to your vehicle it won't work.

expert reply by: Jameson C