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Why Would The Lippert Power Stance Work Off The Auxiliary Cord And Not The Coach Battery?  

Question:

Im trying to wire up my electric jack off a blue top optima battery. It will not work when I hook it to the battery but will operate just fine from the aux cable on the tow vehicle. Question is... what is the minimum volts the jack needs to operate? Should I add a bigger gauge wire? Currently just adding on to the 10 gauge wire it came equipped with, the cable run is no longer than 8 feet total. I can still use the jack with the aux cable but I would like to be able to use the trailer battery. Thank you

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Expert Reply:

It sounds like you have one of two possible issues with the Lippert Power Stance Electric Trailer Jack # LC89VR.

First there is a fuse on the power wire that is not present on the Auxiliary Power Cord # LC79VR. Be sure to check the fuse.

The second issue to check is your ground connection. Since your trailer frame is painted as well as the jack the mounting brackets do not always make the best contact. The jack uses the frame as the ground circuit so you may need to grind off some of the paint to ensure it is making a good connection.

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Bud M
Ken G. profile picture

Ken G.

7/15/2024

My PowerSwap cord worked fine last time I used it, but today no dice. Connected to PowerStance jack from my Yukon 7 way standard connector and no power to jack at all. Is there a fuse in the PowerSwap cord assembly? Have any idea what could be wrong? The PowerStance jack works fine from the trailer battery. Just does not work from the cord anymore. Thanks in advance for any advice. Ken Gittins

BudM profile picture
Etrailer Expert

Bud M.

7/16/2024

@KenG The Auxiliary Power Cord # LC79VR does not have any fuses as your 7-way on your vehicle is going to have its own fuse or other circuit protection. Since the jack works from your trailers power this tells me the problem is either with your vehicles 7-way which you can test with a Test Light # PTW2993. Or your power cord has a damaged wire.
Ken profile picture

Ken

7/16/2024

@BudM Thanks a bunch. WIll do. Ken
BudM profile picture
Etrailer Expert

Bud M.

7/16/2024

@Ken You're welcome!

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