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Old 12-07-2023, 08:26 PM   #1
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2015 Winnebago Brave Retro 110/12 volt

After a long day driving, pulled into a campground and began setting up. 12 volt did not work. Plugged into shore power and got outlet power. Had to start the motor to get 12 volt for fridge,water pump, generator,etc. Turned ignition off and lost all 12 volt and generator shut off. Tried the quick fixes in the owner’s manual to no avail. I am missing something simple here. Anyone experience the same issue? Thanks for any help in advance.
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Old 12-07-2023, 09:55 PM   #2
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Why did you have generator on if you have shore power? Normally you don't want to run the generator when shore power is plugged in - use the campground electricity you are paying for. Also, most campgrounds have rules against making noise with a generator if you are being provided with a camping space with 120 volt shore power.

Two things to check:

1. Look just inside the entrance door for a coach battery disconnect switch, it may be in the off position. If off turn on.

2. Look inside for a WFCO power box. Open its door, make sure all breakers are on. The 120 V to 12 V converter is on a dedicated breaker. Typically the 30 A main breaker will be on one end and the 15 A converter-charger will be on the other.
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Old 12-07-2023, 09:58 PM   #3
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Hi Denny49,
Page 6-11 of your Owner's Manual shows a Coach (or House) Battery disconnect switch. It is possible that this was accidentally switched off? Are the House Battery cables connected well to the terminals?
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Old 12-08-2023, 12:06 PM   #4
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Some points to know to help sort the mystery?
When the engine runs, the start and coach batteries are connected together.
If the RV inside things work, it indicates the disconnect switch is correct and passing the power.
When things work with engine running but die when the engine shuts off and the connection between the two battery groups is dropped, it often indicates that the coach batteries are NOT working. They are doing it with the chassis side help but not without?

Either those coach batteries OR the converter will power things. Either the power coming out of the converter or the power stored in the batteries will run things.
I would first look at the converter as it is what should also be charging the batteries.

Do you hear the converter humming when near it and the RV is plugged in?
If outlets are working or microwave has lights, etc. to verify 110 power getting inside, check breakers and fuses for the power going to the converter as that is what makes it humm!
If it is humming, check breakers or fuses on the outgoing going to the batteries and 12 volt things.
Possibly the cables at the batteries are corroded? Check both ends of bothe the positive as well as the negative cables.
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Old 12-08-2023, 07:58 PM   #5
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Evidently this issue is not high on his priority list.
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Old 12-08-2023, 11:28 PM   #6
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Quote:
Originally Posted by Ray,IN View Post
Evidently this issue is not high on his priority list.
It has only been 24 hours since the original post. Sometimes, life gets in the way. I am sure the advise given here is helpful, and we will hear back when time allows.
Thanks, Eagle5
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