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08-02-2016, 09:48 PM
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#1
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Junior Member
Join Date: Feb 2016
Location: Houston
Posts: 10
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Tow vehicle power supply works, trailer battery not
The trip was trouble free and she was parked out front for cleanup and plugged into the house with A/C running and a storm rolled thru and knocked out power for several hours. The next day, I took her to the storage lot and discovered no power was coming from the trailer battery but the tow vehicle power worked fine.
I know its not the battery cause I've tried two and neither fixed the issue and no fuses in the block are blown.
Sadly, that exhausts my understanding of all things electrical.
Any suggestions?
Thanks in advance,
Kenny
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08-02-2016, 09:52 PM
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#2
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Senior Member
Join Date: Jun 2016
Location: Indiana
Posts: 1,424
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30amp fuse between the battery and the trailer. Mines mounted on the frame just behind the tongue. Power surge probable blew it out
__________________
1999 Suburban 2500 4x4
2016 Jayflight 23RB Elite, Fiberglass, Polar Package
400w Renogy RV solar kit w/ Bluetooth, 100w Renogy solar suitcase
430 amp/hr 6v battery bank
1000w Renogy hard wired inverter
2011 F350 Lariat, DWR 4x4, 6.7 turbo diesel
2017 Open Range, Mesa Ridge 374BHS
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08-02-2016, 09:55 PM
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#3
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Junior Member
Join Date: Feb 2016
Location: Houston
Posts: 10
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Could it possibly be that simple?
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08-02-2016, 09:57 PM
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#4
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Senior Member
Join Date: Jun 2016
Location: Indiana
Posts: 1,424
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Yes, there is an inline fuse between the battery and the trailer on all models to protect the trailer in the event of power surge/battery shorts etc. They aren't all in the same place but follow the battery wires from the battery back and you'll eventually find a 30amp blade fuse. Almost guarentee it's blown. Very common issue, I blew mine with my power jack the first day I owned it
__________________
1999 Suburban 2500 4x4
2016 Jayflight 23RB Elite, Fiberglass, Polar Package
400w Renogy RV solar kit w/ Bluetooth, 100w Renogy solar suitcase
430 amp/hr 6v battery bank
1000w Renogy hard wired inverter
2011 F350 Lariat, DWR 4x4, 6.7 turbo diesel
2017 Open Range, Mesa Ridge 374BHS
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08-03-2016, 11:04 AM
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#5
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Junior Member
Join Date: Feb 2016
Location: Houston
Posts: 10
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I spent an hour over, around and underneath tracing all the wires and found no fuse. They just disappear up underneath thru the bottom. Any other suggestions?
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08-03-2016, 01:13 PM
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#6
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Lost in the Woods
Join Date: May 2014
Location: Ottawa
Posts: 339
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Start with the wire that hooks to the positive post on the battery and follow it back. The fuse should be there unless modifications were made.
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08-03-2016, 01:28 PM
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#7
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Senior Member
Join Date: Jun 2016
Location: Indiana
Posts: 1,424
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It's there somewhere, there is always a fuse but I've heard of guys finding them under the bunk, under couches, behind cabinets. Somewhere in your system is a 30amp fuse between your battery and your converter/fuse panel. Heck it might be hidden behind your converter for all that's worth. If it works off of your tow vehicle and it works off the plug then there is a "disconnect" between your battery and the load center getting the juice. Heck it could just be a bad ground on your battery. You could always run a quick ground wire from your negative battery post to frame just to rule that out. The power surge you mention has fuse blown written all over it. Call Jayco and ask them where they hid the inline battery fuse on that model.
__________________
1999 Suburban 2500 4x4
2016 Jayflight 23RB Elite, Fiberglass, Polar Package
400w Renogy RV solar kit w/ Bluetooth, 100w Renogy solar suitcase
430 amp/hr 6v battery bank
1000w Renogy hard wired inverter
2011 F350 Lariat, DWR 4x4, 6.7 turbo diesel
2017 Open Range, Mesa Ridge 374BHS
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08-03-2016, 02:13 PM
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#8
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Junior Member
Join Date: Feb 2016
Location: Houston
Posts: 10
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Thanks. Jayco says its up underneath the dinette seat. I'll check it out later this evening when it's less than 106 degrees.
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08-03-2016, 03:48 PM
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#9
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Senior Member
Join Date: Nov 2010
Location: Pahrump
Posts: 4,034
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Up underneath the dinette seat. Of Course!!!
__________________
'11 Eagle 320RLDS
'02 F350 PSD Dually 4WD
DW's Ride, '13 Expedition
'14 Denali XL
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08-03-2016, 03:54 PM
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#10
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Senior Member
Join Date: Sep 2013
Location: South Texas
Posts: 7,198
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It's not always a fuse, mine has a circuit breaker mounted to the front of the first frame cross-member.
The only fuse up front was for the power tongue jack, but I replaced that with a circuit breaker when I installed the new jack.
__________________
-2018 Greyhawk 29MV
-2020 Jeep Wrangler Unlimited (JLU) (Primary Toad)
-1994 Jeep Wrangler YJ (Secondary Toad)
-2014 Jay Flight 28BHBE & Ram 2500 6.4L CC 4x4 (sold)
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08-03-2016, 07:26 PM
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#11
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Junior Member
Join Date: Feb 2016
Location: Houston
Posts: 10
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Thanks all. It was a blown fuse hidden under the rear most dinette seat. Live and learn.
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08-03-2016, 07:38 PM
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#12
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,753
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I'll t that question won't come up again? And in the process you find out a lot about your rig!!
__________________
Moderator
2011- 351RLTS Eagle, MorRyde suspension/pin box,
2017- F350 6.7 PSD Lariat FX4,SRW, SB,CC
Hughes PWD SP-50A, TST TPMS
Gator roll-up bed cover
B&W Turnover ball, Companion Std hitch
Can't find what you're looking on JOF? Try Jayco Owners Forum Custom Google Search
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08-03-2016, 08:22 PM
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#13
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Senior Member
Join Date: Jun 2016
Location: Indiana
Posts: 1,424
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That's why I love this forum! Now if I could only figure out how to charge $125 an hour like my local Camping World
__________________
1999 Suburban 2500 4x4
2016 Jayflight 23RB Elite, Fiberglass, Polar Package
400w Renogy RV solar kit w/ Bluetooth, 100w Renogy solar suitcase
430 amp/hr 6v battery bank
1000w Renogy hard wired inverter
2011 F350 Lariat, DWR 4x4, 6.7 turbo diesel
2017 Open Range, Mesa Ridge 374BHS
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08-03-2016, 09:10 PM
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#14
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Senior Member
Join Date: Mar 2015
Location: State of Confusion
Posts: 5,004
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Quote:
Originally Posted by Screwby
Now if I could only figure out how to charge $125 an hour like my local Camping World
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Amazing how they do that with no talent, huh?
Murff
__________________
Murff
2015 White Hawk 20MRB (It's last year)
2017 F150 2.7 Eco Boost 3.73 Gears
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