Troubleshooting Lippert Power Jack that Will Not Lift or Lower

Question

Question:

my Lippert power jack model 1817941 will not lift or lower. The light is on. When I push the up or down button it shorts the light and does not move. Can you suggest a solution and if needed the proper part. Also I am missing the top plug for the unit. Do you sell those seperately? thanks

asked by: Jodie

0

Expert Reply:

Hey Jodie, that sounds like an issue with the power supply or ground for the jack. Make sure the wire connections of the jack are attaches solidly to a battery/power source that is properly charged first to rule that out.

expert reply by: Jameson C

0

Jameson C.

1/12/2026

Hey Jodie, did checking the power and ground connections on your Lippert jack help get it working again? Your update could make it easier for others troubleshooting the same issue.

Jodie

1/12/2026

@JamesonC turned out to be the connection with the plug to the vehicle...a little wiggling to get it to fit properly works everytime!

Jameson C.

1/12/2026

@Jodie its amazing how often that fixes electrical problems haha!

Answer 1

Lippert does not offer a replacement inner jack tube for their jack 1817941. When a jack is damaged in this way (which is more common than you want to know) it really is best to replace the entire jack for safety reasons. The outer tube on your jack…

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Answer 2

I do have an option for you, however there is not a replacement motor available for your Lippert model 1817941 Electric A-Frame Trailer Jack. I recommend simply replacing the jack itself with the Lippert Electric Trailer Jack #LC285318, which is what…

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Answer 3

Lowering a powered jack is much easier on the jack motor than raising it. Since yours will lower but not raise that would typically indicate that the motor is trying to draw more amperage that it can get or the ground is bad. Either way the problem…

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Answer 4

Repair kit #LG-146059 contains 2 pins and the drive shaft all of which are for the top of the jack. To help I have included the written instructions below and also a diagram that points out the parts mentioned in the written instructions. The…

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Answer 5

This has actually come up before and Lippert has told us this happens when the jack gets over extended. They recommend that you disconnect the jack form the power source and manually operate the jack. At this point, you'll need to reconnect the…

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Answer 6

Sounds like there is an electrical short somewhere in the jack circuit. Inspect the trailer jack wiring to see if there is any loose connections and frayed or damaged wiring that could be shorting causing the fuse to blow. Also, if the jack has been…

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Answer 7

Hey Kraig, Along with the 1-1/2" wrench or socket, most installers use a 1-1/4" to 1-1/2" wrench on the flats, or a larger adjustable wrench for the flat portion while the nuts are being torqued on the #C40004. What are you going to be…

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Answer 8

Since most trailer manufacturers do not make wheel and tire information available to the general public, it is hard for me to tell you what size lug nuts you have on the wheel. I can tell you they do have caps over them. The most common size of lug…

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Answer 9

If both middle jacks are not retracting or extending on your #LC675817, odds are one or more of the fuses is out. There is a fuse for each of the legs and if one of these is bad, it will definitely cause the legs not to work. This can be mounted just…

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Answer 10

The reason you're having this issue is because the middle jacks on the Lippert Ground Control 3.0 (6 point set) #LC675817 aren't designed to be run independently and will only come down after auto-leveling has been completed. There is not a…

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Answer 11

You can have a 2-5/16 inch hitch ball on either a 1 inch or 1-1/4 inch shank. The nut on a hitch ball with a 1-1/4 inch shank takes a wrench with a 1-7/8 inch socket. A hitch ball with a 1 inch shank will take a wrench with a 1-1/2 inch socket. You…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Troubleshooting Lippert Power Jack that Will Not Lift or Lower

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