Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
Jayco RV Owners Forum
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-21-2021, 10:51 AM   #1
Junior Member
 
Join Date: Jan 2021
Location: Morgantown
Posts: 4
Fuse at battery keeps blowing

Hey all,

We got our 2006 Jay Feather 232 (handyman special) last month and Iím digging into the repairs.

There was a 25a fuse in-line off the negative post of the battery. All of my negatives are nutted together and the fuse holder is the only thing on the battery. Well, I installed the AiLi monitor (with shunt) so the fuse mounts to the shunt and the shunt is the only thing connected to the battery. This fuse blows instantly when trying to run off of battery power.

I need some guidance. Near as I can tell, there is no manual breaker on my rig. Is this fuse necessary? From what I understand, itís there to protect the wires, not the appliances. It also needs a roof, so Iím trying my best to remove roof components in the freezing cold. I have the interior part of the AC off and the electrical is nutted off separately.

Photo is of my shunt. Blue wire nut is all of my negatives, black and white wire is my breakaway switch for brakes.

Thanks in advance folks. Real newbie here with a failure to understand electrical systems.
Attached Thumbnails
image.jpg  
tyjdavis is offline   Reply With Quote
Old 02-21-2021, 11:09 AM   #2
Senior Member
 
Shokyle1's Avatar
 
Join Date: Oct 2018
Location: Cheyenne
Posts: 694
You usually do not see ground circuits fused.
__________________
2018 eagle ht 29.5 bhds
2016 f350 Lariat 6.7 powerstroke
Shokyle1 is offline   Reply With Quote
Old 02-21-2021, 11:09 AM   #3
Senior Member
 
Grumpy's Avatar
 
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 13,416
Fuse should be on the positive side. Are you sure the battery is installed correctly?
__________________
DISNEY LOVERS
Grumpy is online now   Reply With Quote
Old 02-21-2021, 11:14 AM   #4
Senior Member
 
Join Date: Mar 2017
Location: North Texas
Posts: 2,092
As others have stated, you don't normally see fuses on the ground side (negative) however I wouldn't go without a fuse there unless you know for sure you have a fuse on the positive side as even with it being on the negative side, it will still protect your wiring if you have a short circuit. I would suggest to turn everything off 12v and try again, if you still blow the fuse then you either still have something on that is pulling more amps than the fuse is rated for or you have a short which would need to be further investigated. On an older trailer I had many years back I searched everywhere for a short and finally found the problem was with the electric trailer brakes. ~CA
__________________
2010 GreyHawk 31SS
craigav is online now   Reply With Quote
Old 02-21-2021, 11:24 AM   #5
Senior Member
 
Join Date: Mar 2017
Location: North Texas
Posts: 2,092
I suggest that adding more pictures may be of value, in particular a picture or two of the wiring on the battery itself and as best as you can where the wires off of the battery are going. I had a thought after my last post that perhaps the fuse was wired correctly and was meant to be connected on the positive side of the battery and you (or some unknown person) connected the fused connection to the negative battery terminal instead of the positive terminal connection. If so, that would blow the fuse instantly. ~CA
__________________
2010 GreyHawk 31SS
craigav is online now   Reply With Quote
Old 02-21-2021, 11:39 AM   #6
Junior Member
 
Join Date: Jan 2021
Location: Morgantown
Posts: 4
Photos of battery, where the black and white wire goes to the brakeaway switch, and where (I assume) the battery goes to at the opposite end of the trailer (so thatís easily 25ft of cable), to the DLS-45 converter.
Attached Thumbnails
E03A23DC-3138-4918-BA3E-AFF1937962FD.jpg   495982C9-2044-4B5F-86D9-CACED86ECF6A.jpg   8A1D98E4-B87C-49CE-BBF1-20D9362ADC09.jpg  
tyjdavis is offline   Reply With Quote
Old 02-21-2021, 11:43 AM   #7
Junior Member
 
Join Date: Jan 2021
Location: Morgantown
Posts: 4
I’m thinking if the white wire is coming off the positive on the battery, then it should be going to the receptacle on the converter with the red dot. So maybe switching the battery wires is the solution?
tyjdavis is offline   Reply With Quote
Old 02-21-2021, 11:43 AM   #8
Senior Member
 
ALJO's Avatar
 
Join Date: Oct 2014
Location: Sparwood, BC
Posts: 2,800
Send a message via Skype™ to ALJO
White wire on the plus, is incorrect. White should be on minus/ground to chassis.
Black is plus side.
__________________
2014 Ram 1500 CrewCab 4x4 5.7 Hemi 3.92 Rear and Air Lift 1000
2005 Jayco Jay Feather LGT - 29Y GVWR-7000 lbs.
Dexter Axle Lift 4-9/16" - installed with sub-frame.
Pro Series 1200 lbs. WDH with Double Sway Bar.
Champion 3100/2800 watt Inverter/Generator-Onboard Solar Power
ALJO is offline   Reply With Quote
Old 02-21-2021, 11:49 AM   #9
Site Team
 
JFlightRisk's Avatar
 
Join Date: Apr 2012
Location: Newark, NY
Posts: 13,320
I may be seeing something incorrectly, but the black cable on the negative battery terminal seems to be connected to the positive side of the converter. I see a red dot sticker where it's connected, which would make me believe it's the positive terminal.
__________________
Moderator
Every day's a learning experience, though sometimes not what we expected.

2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
JFlightRisk is online now   Reply With Quote
Old 02-21-2021, 12:01 PM   #10
Senior Member
 
Grumpy's Avatar
 
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 13,416
Quote:
Originally Posted by JFlightRisk View Post
I may be seeing something incorrectly, but the black cable on the negative battery terminal seems to be connected to the positive side of the converter. I see a red dot sticker where it's connected, which would make me believe it's the positive terminal.
YEP, battery is connected backwards...
__________________
DISNEY LOVERS
Grumpy is online now   Reply With Quote
Old 02-21-2021, 12:12 PM   #11
Senior Member
 
Join Date: Mar 2017
Location: North Texas
Posts: 2,092
Quote:
Originally Posted by Grumpy View Post
YEP, battery is connected backwards...
I agree, one thing a lot of people don't realize is that on a car black is often negative, but not for an RV where black is positive. ~CA
__________________
2010 GreyHawk 31SS
craigav is online now   Reply With Quote
Old 02-21-2021, 01:58 PM   #12
Senior Member
 
JimD's Avatar
 
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 1,595
One way to determine which wires are negative is to disconnect the battery cables and take a resistance reading to the metal chassis. The negative cable will read zero ohms while the positive cable will read well above zero depending on what loads are connected and on at the time.
__________________
Jim

Retired electronic technician (45 years in the field)
2017 Greyhawk 29W
solar & many other mods
wife (maybe I should have given her top billing)
JimD is offline   Reply With Quote
Old 02-21-2021, 02:26 PM   #13
Senior Member
 
Join Date: Mar 2017
Location: North Texas
Posts: 2,092
Quote:
Originally Posted by JimD View Post
One way to determine which wires are negative is to disconnect the battery cables and take a resistance reading to the metal chassis. The negative cable will read zero ohms while the positive cable will read well above zero depending on what loads are connected and on at the time.

In fact I was going to reference your troubleshooting articles to tyjdavis in case he was\is not familiar with using an vom meter (voltage ohm meter) and the issue was more than what it was, to troubleshoot issues like this.

tyjdavis, take a look at the following two documents that Jim put together, and then if you don't have a meter, you should get one.

Jim, is this the correct link to the latest of your informative troubleshooting articles?

https://www.jaycoowners.com/forums/f...ies-83176.html

~CA
__________________
2010 GreyHawk 31SS
craigav is online now   Reply With Quote
Old 02-21-2021, 02:31 PM   #14
Senior Member
 
JimD's Avatar
 
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 1,595
Quote:
Originally Posted by craigav View Post
In fact I was going to reference your troubleshooting articles to tyjdavis in case he was\is not familiar with using an vom meter (voltage ohm meter) and the issue was more than what it was, to troubleshoot issues like this.

tyjdavis, take a look at the following two documents that Jim put together, and then if you don't have a meter, you should get one.

Jim, is this the correct link to the latest of your informative troubleshooting articles?

https://www.jaycoowners.com/forums/f...ies-83176.html

~CA
Yep, that is the correct link. The only thing is that you have to scroll through some posts to get to the revision 2 release.
__________________
Jim

Retired electronic technician (45 years in the field)
2017 Greyhawk 29W
solar & many other mods
wife (maybe I should have given her top billing)
JimD is offline   Reply With Quote
Old 02-21-2021, 02:57 PM   #15
Junior Member
 
Join Date: Jan 2021
Location: Morgantown
Posts: 4
Occam’s friggin’ razor (problem solved). Wires were backwards. Thanks all.
tyjdavis is offline   Reply With Quote
Old 02-21-2021, 03:08 PM   #16
Site Team
 
JFlightRisk's Avatar
 
Join Date: Apr 2012
Location: Newark, NY
Posts: 13,320
You're very welcome. Sometimes a second set of eyes see thing differently in a picture, and we all like to help out here. Happy trails!
__________________
Moderator
Every day's a learning experience, though sometimes not what we expected.

2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
JFlightRisk is online now   Reply With Quote
Reply

Tags
2006 jay feather, battery, electrical issues, fuses

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Jayco, Inc. or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 06:58 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.