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Old 01-02-2015, 12:00 PM   #1
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Switch in battery box?

Hello. They is a Blue Sea Power switch 6006 in the battery box of our Jayco.


Can anyone confirm if this is, or isn't, supposed to be the main battery cutoff switch? With my trailer unhooked from shore power, and not hooked to my truck either, I can turn the switch off and it doesn't do nothing. All 12 volt functions will work on the inside and outside of trailer. I can also pull 30amp fuse and everything still works...I though maybe the fuse might be for the 12 volt positive coming from the truck, but haven't dug that deep yet.

Only thing I can tell the switch does, If hooked to shore power and I turn the switch off, the Inverter doesn't charge the battery. Turn the switch on and the battery charge starts coming back up. Also it kills the power to the Schwintek inwall slideout if unhooked from shorepower.

So my biggest question is, is the switch supposed to kill all 12 volt power to the trailer, or just cut off the charge from the inverter?
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Old 01-02-2015, 02:10 PM   #2
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The inverter is not a part of charging your batteries. That is the converter.
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Old 01-02-2015, 02:23 PM   #3
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Hey Sledge,
I'd suspect the wiring has been "modified", perhaps by a previous owner. Pulling the 30A fuse should isolate the battery from the TT except for the break-away switch for the brakes.
In your picture there appear to be 2 leads going to the terminal on the left (thick black wires) and another thick black wire coming from the right side terminal which also has the trailer brake and 30A fuse attached.
So, where are the left side wires going? I would expect to the battery but why are there 2?
Where is the thick black wire on the right going?
I would expect the black wire attached to the green wire coming from the fuse to lead to the main fuse panel. I think the orange wire would go to the break-away switch. Not sure where the thinner black wire leading down from the red junction box goes.
There's more knowledgeable folks on the forum that will probably check in on this.
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Old 01-02-2015, 03:20 PM   #4
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Originally Posted by norty1 View Post
The inverter is not a part of charging your batteries. That is the converter.
That was my fault. Should have used converter instead.
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Old 01-02-2015, 03:26 PM   #5
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Being previously owned anything is possible. If it was mine I would draw up the electrical wiring, and figure out what things are connected to. Use some light colored electrical tape or masking tape on each end of each wire and note what they go to and from.

If it was mine I would not want to disconnect the battery when connected to shore power. I would want it disconnected when the unit is in storage mode.

It is possible they did not know what they were doing, and never used it.
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Old 01-02-2015, 03:39 PM   #6
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Hey Sledge,
I'd suspect the wiring has been "modified", perhaps by a previous owner. Pulling the 30A fuse should isolate the battery from the TT except for the break-away switch for the brakes.
In your picture there appear to be 2 leads going to the terminal on the left (thick black wires) and another thick black wire coming from the right side terminal which also has the trailer brake and 30A fuse attached.
So, where are the left side wires going? I would expect to the battery but why are there 2?
Where is the thick black wire on the right going?
I would expect the black wire attached to the green wire coming from the fuse to lead to the main fuse panel. I think the orange wire would go to the break-away switch. Not sure where the thinner black wire leading down from the red junction box goes.
There's more knowledgeable folks on the forum that will probably check in on this.

Your all over it....and I figured it out. 1 wire was on the wrong terminal. I also bought this new, so if anyone has messed with the wiring its been jayco or the dealer.

The green wire with the 30 amp fuse goes directly to the 12+ on the 7 pin hitch plug.
The Orange wire is for the breakaway switch.

On the switch, right side is battery side, left side is Accessory side. Big wire going to left is from the converter, little wire is to the Schwintek slide.....which explains why only the one slide didnt work with the switch off...also explains why the battery wouldn't charge with the switch off but everything else besides the 1 slide worked.

The big wire on the right side of switch is what feeds the rest of the trailer 12 volt power. The other short big black wire goes to the junction block for the breakaway, then on to the positive side of the battery. Not sure why they just didn't hook the orange wire for the breakaway to the battery side of the switch...coulda eliminated the junction block..but oh well.

So the hot wire that feeds the whole trailer 12 volt power was hooked to the same terminal that the hot wire from the battery was. So, I switched it to the accessory side and the switch works like it should now.
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Old 01-02-2015, 03:42 PM   #7
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Quote:
Originally Posted by Jagiven View Post
Being previously owned anything is possible. If it was mine I would draw up the electrical wiring, and figure out what things are connected to. Use some light colored electrical tape or masking tape on each end of each wire and note what they go to and from.

If it was mine I would not want to disconnect the battery when connected to shore power. I would want it disconnected when the unit is in storage mode.

It is possible they did not know what they were doing, and never used it.
Thats what I was after with the whole thing.
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Old 01-05-2015, 01:04 PM   #8
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It seems odd to me that the 30A fuse goes directly to the 7-pin plug and that the slide has its own wire coming directly from the switch.
I believe that pulling the fuse should have the same effect as turning the switch off (ie: isolating the battery from the TT).
I wonder if the distribution panel has a fuse for the slide. Perhaps the wire to the slide was added by your dealer or Jayco after discovering something wrong with the panel or wiring to the slide.
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Old 01-05-2015, 04:16 PM   #9
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Well traditionally, a switch like that is a "total battery shutdown". However, you (the OP) mentioned the slide is inop with the switch off. Maybe the original owner was having trouble with the slideroom inching out while traveling, OR, maybe he had kids/grandkids that couldnt leave the slideout control switch alone. He might have wired that switch to the slideout power only. BTW --- some MHs (class C especially) has key lock switches to override the toggle switch for the slideout. This red disconnect could serve that purpose also.
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Old 01-05-2015, 04:31 PM   #10
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Quote:
Originally Posted by qwed94 View Post
Well traditionally, a switch like that is a "total battery shutdown". However, you (the OP) mentioned the slide is inop with the switch off. Maybe the original owner was having trouble with the slideroom inching out while traveling, OR, maybe he had kids/grandkids that couldnt leave the slideout control switch alone. He might have wired that switch to the slideout power only. BTW --- some MHs (class C especially) has key lock switches to override the toggle switch for the slideout. This red disconnect could serve that purpose also.
The op stated this is a new rig. Something fishy here! I don't think that switch pictured is a original equipment addition. Your dealer should be involved in this. I still don't understand how a PDI could have been done on this rig.
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