Troubleshooting an Electric Jack that keeps Blowing Fuses

Question

Question:

This jack is brand new on my new trailer. worked great at the dealer and at home. Worked great on camping trip and back. last week I went to adjust my hitch height and jack blew the fuse. put a new one in it and 2-3 seconds in the down direction blew a fuse. replaced fuse again and blew fuse. what could be the problem? it is the mid range of function so its not bottoming out or going too high.

asked by: John A

1

Helpful Expert Reply:

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 extended too far, then trying to move the jack back into position will draw more amps then normal operation. This would cause the fuse to pop. Since you stated that you got the jack to start to retract again, then internal damage to the unit is probably unlikely. If the wiring checks out, then replace the fuse and try to get the jack to its final retracted setting. Then try to raise the jack again to see if the fuse will or will not blow.

expert reply by: Jared P

1

Answer 1

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 2

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.

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Answer 3

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 4

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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Answer 5

You can use the RV Propane Gas Detector #RS64FR (white) or #RS44FR (black) to replace your current Atwood 31013 propane gas detector. This will also use a 12v, 2-wire installation like your current detector.

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Answer 6

Congrats on the new motorhome Edward! SnapPad doesn't have the 2026 Allego Red 38 KA in their system so I don't know what size your jack feet are. However, we have a few options that will work with the HWH leveling systems. What you'll…

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Answer 7

The RV Propane Gas Detector part #RS64FR is what I recommend using to replace the the Atwood RV Propane Gas Detector part 31013 (Discontinued). The mounting plate for this new detector will cover up any holes you had for the previous so it will be a…

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Answer 8

Hello Ralph, thanks for reaching out. The etrailer Electric Trailer Jack #e23ZV will be a great option for you. The jack can be rotated to the side if needed. We have one of these jacks on our trailer here at the shop and I have seen it rotated and…

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Answer 9

It sure does Steve! Our 3,500 lbs etrailer Electric Trailer Jack w/ Tongue Weight Scale item #e43KV also comes in a 5,000 lbs capacity. We have two different options depending on how you want to power it that I have listed below: Wired to Trailer -…

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Troubleshooting an Electric Jack that keeps Blowing Fuses

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