Troubleshooting Electric Trailer Jack That Wont Work When Plugged Into Vehicle Trailer Connector
Updated 08/12/2020 | Published 08/30/2015
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Question:
My electric trailer jack works fine on a fully charged battery but wont work plugged into the truck when the battery is dead.
asked by: Dave
Expert Reply:
I'd recommend using a circuit tester like part # PTW2993 to test the pin in the 1:00 position on your 7-way trailer connector. This pin provides the 12-volt power to the trailer. If this circuit isn't active, how you'll proceed will depend on the vehicle make and model. If the vehicle has the factory tow package, there's likely a fuse in the panel in the engine compartment that's blown or missing.
Using a trailer mounted battery is the preferred method of power a trailer jack. Because the voltage for the 7-way is being delivered from the far away trailer battery through a 12 or so gauge wire, the jack won't work very quickly. If you've done this in the past, it's possible that the jack could have blown the fuse protecting the 12-volt power circuit.
Product Page this Question was Asked From
Lippert Electric Trailer Jack with Footplate - A-Frame - 18" Lift - 3,500 lbs - Black
- Camper Jacks
- Pop Up Camper
- Teardrop Camper
- Travel Trailer
- A-Frame Jacks
- Steel
- 3001 - 4000 lbs
- Electric Jack
- Bolt-On
- 1 Jack
- Lippert
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Ben
8/3/2020
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