Electric Jack

MtnDAWG · 02-25-2021, 07:57 PM

I have a 2020 Surveyor 287BHS. Was having some warranty work done at the dealer. Went to pick it up the electric jack wouldn't work. I had it plugged into my 2015 Ram 1500. The brakes and lights worked but not the jack. I thought if it was plugged into the truck it should work? The dealer replaced the battery in camper and the jack worked. I turned the battery disconnect to the camper and jacked works without being plugged into the truck. Why is the truck not powering the jack? Thanks for the help!!

Cdj8465 · 02-26-2021, 02:57 AM

Sounds like the 12v pin is not live or has a blown fuse. There have been several posts about some makes and years of trucks where the 12v pin is not wired. On the same posts it talks about how to test and what pin to check. Search 7 pin

MtnDAWG · 02-26-2021, 05:13 AM

Thanks

Cabinfever97 · 02-26-2021, 08:12 AM

My 2015 F250 is not hot unless the truck is running. My 2007 Silverado 2500 is hot all the time.

MtnDAWG · 02-26-2021, 08:14 AM

Not sure If it was running or not. But the brakes and lights were working??

**Mr. Dan** · 02-26-2021, 08:19 AM

Quote:

Originally Posted by MtnDAWG

Not sure If it was running or not. But the brakes and lights were working??

Brakes and lights are different circuits/wires... powered from different sources.

MtnDAWG · 02-26-2021, 08:21 AM

Thanks!!

**wmtire** · 02-26-2021, 08:23 AM

Quote:

Originally Posted by MtnDAWG

Not sure If it was running or not. But the brakes and lights were working??

As explained above, you have to get 12 volt DC power to the jack for it to work. This will come from your RV battery (If it is charged and/or the battery disconnect on)...or from your truck if the 12volt+ pin on the umbilical cord is powered.

Your truck may not have that pin powered, as others are pointing out.

Your lights and brakes work off of other pins.

Here is an example:

MtnDAWG · 02-26-2021, 08:26 AM

Thank you!!

**wmtire** · 02-26-2021, 08:34 AM

Quote:

Originally Posted by MtnDAWG

I turned the battery disconnect to the camper and jacked works without being plugged into the truck.

Need to point out something else since you are talking about the battery disconnect. You use this disconnect only when storing the RV. It always needs to be ON when pulling it or using the RV.

The reason you have it ON when pulling it, is for the breakaway switch. If the RV does break away from the truck, then the electric brakes on the trailer have to get power from the RV's onboard battery to stop the trailer when it becomes disconnected from the truck and the emergency breakaway cable is pulled out from the breakaway switch.

The brakes cannot get power in this potentially catastrophic situation should the battery disconnect be OFF.

This thread may help:

https://www.forestriverforums.com/fo...ff-217978.html

Side note: Some RV's may be wired so the disconnect does not affect the breakaway switch.

MtnDAWG · 02-26-2021, 09:14 AM

Thanks

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