Troubleshooting HappiJac Electric Truck Camper Jacks
Updated 09/02/2025 | Published 08/09/2025
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Question:
We have a northstar slide on camper with happijac legs. The remote will operate 3 of the legs but not the back rear one. No changes have been made to the setup and previously, all 4 legs could be operated using the remote. Any assistance would be appreciated. Cheers and thanks Lynne
asked by: Lynne J
Expert Reply:
Thanks for reaching out Lynne!
That sounds frustrating, so lets see if we can get your jack back up and running. A few things to check would be to make sure that you are getting power to the jack leg that is not working with the remote. You can use a basic tester, like part # PT72PJ, to make sure that you are getting power to the jack. If you are, please check out the troubleshooting table in the picture below. If you have tried everything then it's possible you may need a new circuit board, part number # LC733513. Hopefully that is not the case and it's a simple fix.
Let me know how everything goes!
(click to enlarge)
Product Page this Question was Asked From
Replacement Remote Cable for HappiJac Electric Truck Camper Jack Systems - White
- Accessories and Parts
- Camper Jacks
- Trailer Jack
- Controllers
- Remote Control
- HappiJac
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Gwendolyn Y.
9/2/2025
Hey Lynne, Did you have a chance to test the power to the jack leg that isn't working with the remote? I'm eager to know if the troubleshooting steps helped or if you found another solution, as it could assist others facing a similar issue.