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Old 12-27-2015, 02:56 PM   #1
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Electricity problems, please help! 2016 Precept 29 UR

I just received our new Precept 29 UR, and when I tested everything for the first time all was working well. now we are about to take a trip and no electricity is coming to the 12V systems. The generator is running good and sending the 110V out. The microwave, Tvs , 110v outlets have power. But the lights, fridge, lights are not working (not getting power). The switch (main power switch)at the doorsteps is not lighting on. Does anybody know what could be the problem or how to fix it? Any help is geatly appreciated from this RVing newbie!
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Old 12-27-2015, 03:56 PM   #2
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I am not familiar with your unit, but I'm sure someone else on this forum may be able to help. Answering a few questions may help that someone help you:

When was everything working OK?

Have you checked the RV circuit breakers?

Are you in your driveway or a campground?

When you are plugged into shore power, do you then have 12 volt power?

When the generator is off, do you then have 12 volt power?
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Old 12-27-2015, 06:33 PM   #3
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What is the voltage at the battery(s)? How long was it sitting since the last charge? Check the main fuse by the battery(s)?

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Old 12-27-2015, 07:16 PM   #4
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check the switches on your converter
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Old 12-27-2015, 07:36 PM   #5
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Found the problem!

Thanks for the replies friends!
The problem was that the 12V feed cable that goes to the chassis batteries was connected by mistake to the negative instead of the positive.. This was done by the welder that made the custom bumpers for me, and disconnected the batteries to weld...
After troubleshooting ALL the cables, fuses, relays, switches, with an electrician, he finally found the mistakenly connected wire.

By the way, does anybody know if I can plug the shore/city power cable to 220V? The label on the cable says 110/220. This is a 2016 Precept 29uR with onan marquis gold 5500 generator, 50amp supply.
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Old 12-27-2015, 07:43 PM   #6
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Quote:
Originally Posted by Chavo_mx1 View Post

By the way, does anybody know if I can plug the shore/city power cable to 220V? The label on the cable says 110/220. This is a 2016 Precept 29uR with onan marquis gold 5500 generator, 50amp supply.
As long as it is a standard 4 wire.

2 hot, 1 neutral and 1 ground.
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Old 12-27-2015, 08:03 PM   #7
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But the appliances I am not sure if they are 110/220 dual voltage.. i am afraid of frying them ����
The owners manual sucks, hardly gives you useful info.
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Old 12-27-2015, 08:11 PM   #8
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They are not dual voltage. A 4 wire RV plug gives you 2, 110 volt legs. It has to be a 4 wire connection, not 3.
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Old 12-27-2015, 08:47 PM   #9
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Do not trust and electrician, because MOST or them are not familiar with RV shore power wiring. Before letting anyone (yes,even a Professional electrician) touch the wiring, download a diagram of how the 50 amp RV outlet should be wired for an RV, and have them wire it according to the diagram. One wrong connection and it could be VERY expensive for you.

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Old 12-28-2015, 05:57 AM   #10
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Agree, Many professional electricians are not familiar with the electrical wiring of power for rv's.
The best thing is to discuss and go over the diagrams or at the least assure that he has experience in this area of electricity.

If he thinks it's "just like Dryer" or something like that, your antennas should go on alert.

Major damage to your appliances and electronics can occur if it is wired incorrectly.
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