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Old 11-29-2016, 07:40 AM   #1
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2015 2101FSB power converter location

We have a 2015 Minnie Winnie 2101FSB. The battery is not charging with external 30Amp connected. Where is the power converter located on this model?
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Old 11-29-2016, 09:41 AM   #2
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:welcome:

Winnebago documents it's RVs very thoroughly and makes accessing that information easy to find. When I looked for your model RV, I found I needed the serial number to get exact electrical diagrams. You'll have to search this website with that added information.
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Old 11-29-2016, 10:07 AM   #3
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It's a trailer...

It's a Winnebago Minnie, not a Minnie Winnie, which is a motorhome.

Unfortunately, the online resources only cover motorized products.
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Old 11-29-2016, 10:18 AM   #4
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Sorry, you called it a "2015 Minnie Winnie 2101FSB." You'll have to check in compartments, closets, and cabinets. Not a waste of time, you'll learn more about your RV in the process. Often the converter/charger is located near the 12v fuse panel. I'd also look near where the 120v breaker panel is located, there's probably a breaker for the converter/charger. Also look in near your battery compartment for the converter/charger. You might have a manual for the converter/charger, you could look in there to see where the 12v circuit breaker or fuses are located on the box once you find it.
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Old 11-30-2016, 09:11 AM   #5
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Thanks for all the responses.

I now know the proper name for our model. 2015 Winnebago Minnie 2101FSB.

Our model does not occur in the list of electrical info on the Winnebago web site.

I located the power converter next to the 12V fuse panel. The converter was behind a cover. I have attempted to add a jpg image.

Next, I will use a meter to see if 120VAC gets to the converter and if 12VDC comes out.
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Old 11-30-2016, 09:34 AM   #6
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Originally Posted by Bill Swartz View Post
.....Next, I will use a meter to see if 120VAC gets to the converter and if 12VDC comes out......

Welcome to the forum!

Sounds like you're going about this in exactly the right way. Good luck
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Old 11-30-2016, 03:01 PM   #7
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further testing

With external 120VAC 30A connected and the battery disconnected, I see 13.5VDC across the 2 terminals at the lower left corner of the 12V fuse PCB (printed circuit board). The 2 terminals are shown in the attached photo. The large red and white cables come from what I believe to be the power converter.

There is a 2nd large red cable connected to the lower right corner of the PCB. The 2nd cable has 0V between it and the large white cable in the photo. I guess that is a problem, but it is just a guess.

Where can I get info on the 12V fuse PCB in a 2015 Winnebago Minnie 2101FSB?
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Old 11-30-2016, 03:13 PM   #8
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Now if you connect the batteries and unplug the shore cord, do you still see +12v at those two terminals? Often a converter/charger has circuit breakers on the outside of the cabinet or case. You might look for instructions for your converter/charger by Googling the make and model #.
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Old 12-01-2016, 06:49 AM   #9
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If you uploaded the entire picture of the distribution panel we would be able to tell for sure but;

Most likely one of the red cables is the battery and one is the converter. My concern is that I would think that they are both shorted together at the board.

Right now you need to verify that you have 13.5 (or so) coming out of the converter.
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Old 12-01-2016, 06:58 AM   #10
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....Where can I get info on the 12V fuse PCB in a 2015 Winnebago Minnie 2101FSB?
I'm pretty sure you could easily reverse engineer the PCB by looking at the back.

It likely has the Batt/Converter connected together and then 12Vdc goes through the fuses to the RV.
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Old 12-01-2016, 12:27 PM   #11
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Again, with external 120VAC connected, there is a 13.5VDC drop from terminal 2 to terminal 1 in the photo. This tells me that the power converter is working when connected to the shore cord.

There is no voltage between terminals 1 and 3.

There is continuity between terminal 1 and the battery negative cable. There is continuity between terminal 3 and the battery positive cable.
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Old 12-01-2016, 12:47 PM   #12
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Is there continuity from "3" to the surrounding area on the front of the board.

I can't totally see the board on the side of the second 40 amp fuse but; it looks like the two 40 amp fuses connect the two red cables normally. I would think that even if you removed the cable from #3 you should still see 13.5 vdc. Is there any way that the post (3) has come loose from the board?

Do your 12VDC devices only work when you are plugged in? (The 40 amp fuses are good I assume?)
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Old 12-01-2016, 01:05 PM   #13
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Bill, when plugged in to shore power, and battery disconnected, do your interior lights, water pump, refrigerator, etc. work? If so, you know the converter is connected to the system. Next, with battery connected, shore power disconnected, do the lights and 12v powered devices work? If so then you know batteries are connected. Measure voltage at the battery, then connect the shore cord. You should read an increase in voltage as converter/charger starts charging.

If NOT some of the above outcomes, then you'll have to find where the disconnect is happening. Do you have a battery isolation relay? Perhaps controlled by a switch near the entrance that is labeled "Use" / "Store"? If no switch, then you'll have to look for a fuse or circuit breaker between the battery and the wires to the converter. Often the large 12v fuses/circuit breakers look like a block of plastic with wires connecting on both ends.
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Old 12-01-2016, 01:52 PM   #14
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okcnewbie, I will check the post and both of the 40A fuses.

BFlinn181, the problem is that shore power is not charging the battery.
Shore power is getting to the power converter and 13.5VDC is coming out and getting to the PCB at terminals 1 (-) and 2 (+).
At the battery, the battery cables are electrically connected to terminals 1 (-) and 3 (+).

The problem must be somewhere between terminals 1 and 3.
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Old 12-01-2016, 01:55 PM   #15
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....The problem must be somewhere between terminals 1 and 3.....
Looks like the bottom of all the top fuses should be connected to 3 as well.
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Old 12-03-2016, 12:29 PM   #16
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Replacing the 2 40A fuses fixed the charging problem. I'm sure they were blown due to operator error. Thanks for all the help. I will start a new thread for the other electrical problem.
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Old 12-03-2016, 01:50 PM   #17
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Below the fridge....the cabinet.
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Old 12-03-2016, 06:58 PM   #18
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ALL Winnebago 2101FBSs are travel trailers as are 2101DSs. Now 2106FBS and 2106DS at 7 feet in width.
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