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Old 10-24-2021, 07:47 PM   #1
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converter location

Hello everyone, my name is Randy and I am fairly new to this website, and to rv ing in general, but i am in need of some experienced help.
I recently purchased a used 2019 43 ft Cardinal luxuyy model 3700 5th wheel and am enjoying it very much. This weekend I had a battery failure and discovered that my rv batteries are not being charged by anything. After doing my research, i searched my entire trailer and discovered that my trailer appearently does not have a voltage converter. i have looked everywhere, and can not locate one. most are under the electric breakers in the electric control center but not in my trailer, i did find a very nice voltage inverter down in the basement area, but no converter. I did some research on my inverter to make sure it was not a combo unit and it is not, nor does my particular inverter charge my battery in any way, per the manufacturer of the inverter and the user manual, it is only an inverter. So i just find it hard to believe that this large luxury RV 5th wheel with 5 slide outs does not have a simple voltage converter. I did purchase a simple dual bank battery charger to maintain my batteries until i either locate the converter and repair it or replace it. Any help from anyone out there would be greatly appreciated. Thanks
Randy
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Old 10-24-2021, 09:15 PM   #2
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Quote:
Originally Posted by kr1928 View Post
Hello everyone, my name is Randy and I am fairly new to this website, and to rv ing in general, but i am in need of some experienced help.
I recently purchased a used 2019 43 ft Cardinal luxuyy model 3700 5th wheel and am enjoying it very much. This weekend I had a battery failure and discovered that my rv batteries are not being charged by anything. After doing my research, i searched my entire trailer and discovered that my trailer appearently does not have a voltage converter. i have looked everywhere, and can not locate one. most are under the electric breakers in the electric control center but not in my trailer, i did find a very nice voltage inverter down in the basement area, but no converter. I did some research on my inverter to make sure it was not a combo unit and it is not, nor does my particular inverter charge my battery in any way, per the manufacturer of the inverter and the user manual, it is only an inverter. So i just find it hard to believe that this large luxury RV 5th wheel with 5 slide outs does not have a simple voltage converter. I did purchase a simple dual bank battery charger to maintain my batteries until i either locate the converter and repair it or replace it. Any help from anyone out there would be greatly appreciated. Thanks
Randy

Welcome aboard Randy. You may find a converter on 5th wheels behind a hidden panel in the pass thru storage up front. I've also seen them in the steps leading to the bedroom, which had a hidden panel too.


When you say battery failure, did you replace the battery or batteries? Could you have connected the cables in reverse(very common). If so you blow the reverse polarity fuses to the converter and it will not function. These fuses can be in the electrical distribution panel or on the converter (or sometimes there is a separate DC fuse panel) Also you may have a 12 volt DC circuit breaker that needs resetting, that will require you tracing the battery cable from the battery. This thread link may help


https://www.forestriverforums.com/fo...ml#post1743883


and this one at Post #5 explains the reverse polarity fuses.


https://www.forestriverforums.com/fo...ml#post2385749
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Old 10-25-2021, 06:52 AM   #3
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Missing converter

Yes i replaced the single deep cycle battery with a new pair of deep cycle batteries. Of coarse after I brought the dead battery home and gave it a good hard charge, it is fine and holding a good charge. When I went to my trailer for the weekend , which I keep down here at the Texas coast, I tried to open up my slides and the 3 cable driven slides opened normally but I also have 2 larger hydraulic slides and they would not move at all, checked the battery and it only had about 10.3 volts, thatís when I new there was just not enough power for the hydraulic system to operate, the big question was why?
Thatís when I started investigating everything.
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Old 10-25-2021, 04:57 PM   #4
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yes i did find 3 of the resetable 12 volt breakers there near the batteries and they were fine, there were also no tripped breakers in the control center and there were no burned out fuses in the control center either, those are some of the first things that i checked.
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Old 10-26-2021, 07:49 AM   #5
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our cardinal is a different model so this may not be the same. look at the back wall of the storage area. on ours there is a small (maybe 5 inch by 5 inch) access panel that is screwed on the read wall of the storage compartment on the curb side. if you take this access panel off you can look through it to see the converter. the converter is mounted under the stairs. you can see it through the access panel but to actually work on it you would have to take the read wall of the storage compartment out or somehow take open the stairs up and access it from above.

again, this may not be the same on yours.
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Old 10-26-2021, 02:02 PM   #6
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In a lot of models the actual converter is located behind the distribution center, which some people call is their breaker box. The distribution center distributes 110v A/C and 12v D/C. Typically 6 screws will remove the distribution center and usually the converter is located a foot or 2 behind that location secured to the floor or wall. The wiring should have 12 to 16 inches of play to be able to remove the distribution center and set it on the floor. I do recall some models had a separate secondary fuse panel located near the distribution center. Hope you can locate yours.
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Old 11-05-2021, 11:39 PM   #7
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Mine is behind the wall in the belly there is a what looks like a heater vent located on a square of covers plywood 4 screws and itís off . and there it is .
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Old 11-06-2021, 11:23 AM   #8
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Hereís mine. Trying to attach photo. Itís behind the aft panel, passenger side of the storage bay. Just replaced the original with a Progressive Dynamic product. 2012 Brookstone Ruby fifth wheel.
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Old 11-06-2021, 11:51 AM   #9
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Originally Posted by billywilly View Post
Hereís mine. Trying to attach photo. Itís behind the aft panel, passenger side of the storage bay. Just replaced the original with a Progressive Dynamic product. 2012 Brookstone Ruby fifth wheel.
Converter locations are brand/model-specific. The OP asking about a Cardinal model and posted it in the Cardinal sub-forum.
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Old 11-06-2021, 02:05 PM   #10
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Thanks. Did not realize I was speaking out of turn. Donít know how I arrived at this juncture. Just trying to be helpful.
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Old 11-06-2021, 03:43 PM   #11
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Thanks. Did not realize I was speaking out of turn. Donít know how I arrived at this juncture. Just trying to be helpful.
I'm sure your PD converter recommendation was helpful.
Just that your converter location is most likely not the same as the OP's trailer.
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