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#730219 - December 01st 2017 2:22 pm Power Outlet Issues  
Joined: Sep 2017
Posts: 6
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stranger
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stranger

Joined: Sep 2017
Posts: 6
Los Angeles, CA
Hi all,

I came into ownership of a 79 Trans Van last year and it had a deep cycle battery installed and it looks to power the back half of the van. Including lights, fridge and pair of power outlets.

The issue I have is that, all the lights and fridge appear to run fine off the battery power, but the power outlet does not. When I plug the van up to a power source, the outlet works just fine.

Here's what my breaker looks like, if it helps.
https://i.imgur.com/0z9GXJL.jpg
https://i.imgur.com/dzp93is.jpg

The bottom fat line is for the outside power. The line on the left (I believe) is from the fridge. Which tells me that one of those smaller two on the bottom is going to the outlet. The wiring is under glued carpet so I'm not sure which.

Any ideas?

Thanks.

AdSense long
#730252 - December 02nd 2017 11:56 am Re: Power Outlet Issues [Re: Show]  
Joined: Nov 2013
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Dyno_Dave Offline
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Dyno_Dave  Offline
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Michigan
Do we know for a fact that the outlet in question is connected to an inverter?

#730264 - December 02nd 2017 7:25 pm Re: Power Outlet Issues [Re: Show]  
Joined: Mar 2011
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jcd74 Offline
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jcd74  Offline
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NY
The 20 amp slim line, is it tripped? push all the way off then on. The way people wire stuff scares the crap out of me.

#730265 - December 02nd 2017 7:28 pm Re: Power Outlet Issues [Re: Show]  
Joined: Mar 2011
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jcd74 Offline
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jcd74  Offline
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NY
Could you take the panel cover off and take a pic.

#730301 - December 03rd 2017 12:43 pm Re: Power Outlet Issues [Re: Show]  
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stranger
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stranger

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Los Angeles, CA
So I had never seen an inverter in the van up to this point. What I did see was a fuse box on the back of the driver's seat, and some of these handle the lights in the back of the cab.

[Linked Image]

Only just this morning while taking this picture did I realize that cables go in UNDER the seat. So, found the inverter.

[Linked Image]

I've tripped both lines numerous times to troubleshoot. With no outside power, and lines circuits on, fridge and lights work, but nothing for the outlet.

With outside power with both lines on, I get power for everything including the outlet. Here's the inside of the breaker box.

[Linked Image]

#730304 - December 03rd 2017 2:04 pm Re: Power Outlet Issues [Re: Show]  
Joined: Mar 2011
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jcd74 Offline
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Posts: 258
NY
I think Dyno Dave hit the nail on the head. Unless the Fridge and lights are on a dedicated circuit to the Inverter, they are 12 volts. Connect to shore power and turn both breakers off, lights and fridge still work? If so they are 12V being fed from the fuse panel. You can confirm this by removing one of the lamps and checking it's rating on the bulb. The overall install looks legit, done by someone who knows what they are doing. The neutrals and grounds are separated in the panel, they grounded the chassis. The outlet by the inverter (more than likely a Battery charger) is there to charge the battery when you are connected to shore power. You would never wire a line cord to be hot with the prongs exposed, and never backfeed a female outlet. If you look at the 20 amp circuit it was not installed with the same care, notice the missing cable connector. This was probably added after by the last owner so they could have at least one convenience outlet when parked. Good news is you have one space left if you want to add something, Looks like a GE slimline breaker. The bad news the van was never intended to have line voltage power unless it is connected to shore power.

#730306 - December 03rd 2017 5:24 pm Re: Power Outlet Issues [Re: Show]  
Joined: Sep 2005
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CatFish Offline
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CatFish  Offline
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Georgia, USA
On my Ford I had two 120v outlets fed from the inverter and two outlets from shore power only. The inverter fed outlets had power all the time (via the battery/inverter) and were used for low amp items, fridge, lights, etc. The other two were for high amp draw fixtures such as air conditioner or heater which used too much current for the inverter and had to be shore only.
Your system may be similar.......

#730330 - December 04th 2017 1:57 pm Re: Power Outlet Issues [Re: Show]  
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stranger
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stranger

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Los Angeles, CA
Thanks a bunch for the input folks. Going by what jcd and Dyno said, seems like that outlet is only there to be used when the van is hooked up to power.

Good to know!


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