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Old 06-05-2016, 12:03 PM   #1
2 Rivet Member
2008 532 International
New Braunfels , Texas
Join Date: Aug 2015
Posts: 58
Jack Power and Light, too

2008 International 25 FB.

Jack raised last night to take off the anti sway bars. Got the bars off and went to lower the jack and it had no power. The light on the jack head didn't work either.

Had the power cord hooked up to the truck, didn't make a difference. Had plenty of battery power- all of the lighting in and on the trailer worked without trailer being hooked up to the truck.

Hand cranking that son of a gun is a pain in the butt but I don't want to have to. What would y'all guess- fuse? I'm hoping that's it and think it may be since the light doesn't work either. Where is the fuse located, also...

Sorry to ask the dumb questions but we're rookies and we're on the road.

Thanks in advance,

Andy and Nancy
25' 2008 International Ocean Breeze CCD
2002 Lariat F-250 7.3
Ext Cab Longbed
Harley occasionally in the bed.
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Old 06-05-2016, 12:21 PM   #2
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Al and Missy's Avatar

2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 2,752
I had the exact same problem. My jack had both a power wire and a ground wire, not grounded through the frame. The other end of the ground wire had pulled out of the terminal block. I was checking the power line without thinking about the ground. I was mystified for a while because when I checked the jack power line to the trailer frame it showed I had power to the jack. I finally found it when I traced the wires from the jack back to the power distribution circuits.

Also, my jack had an inline fuseholder in the wiring at the A-frame of the trailer. Look for a fuseholder and follow all jack wires back to where they ultimately connect.



"You cannot reason someone out of a position they have not been reasoned into"

Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

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Old 06-05-2016, 12:41 PM   #3
2 Rivet Member
2014 25' Flying Cloud
Temple , Texas
Join Date: Apr 2016
Posts: 96
clean the fuse and wires connecting the fuse, also check the fuse to make sure it has not blown. First day we had the AS the fuse blew, our previus rig had fuse connection issues that required frequent cleaning. Whatever the problem the electric jack beats a manual one
2014 Flying Cloud 25FB
2016 Ram 1500
Blue Ox WDH
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Old 06-05-2016, 12:42 PM   #4
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drew05's Avatar
2011 25' FB Flying Cloud
Peculiar , Missouri
Join Date: Aug 2010
Posts: 496
Check the in-line fuse holder and fuse. It should be below the motor head, and may be yellow. This is the wire (positive) that goes to the battery.

Also check to see if you have any corrosion on the battery terminal connection - if so, clean it off. Check to see if this works. If the light comes on but the motor doesn't energize then check the switch, and the connections. I recently found a poor/failed crimp on one of the connectors. Checking the up/down switch connectors will require you to unscrew the two screws and lift the cover. Do so carefully, as there isn't a lot of slack on some of the wires...

Good Luck
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Old 06-06-2016, 10:06 AM   #5
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merchantmm's Avatar
2015 27' Flying Cloud
Yorba Linda , California
Join Date: Nov 2014
Posts: 69
Images: 2
Exact same problem last week in the Tetons. Replaced 30amp in line fuse and all good.
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Old 06-06-2016, 10:31 AM   #6
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Randakk's Avatar
2015 23' FB Flying Cloud
Pinehurst , North Carolina
Join Date: Jun 2015
Posts: 28
Also - reversing the jack direction while the jack is still in motion is an excellent method to kill the fuse. Don't ask how I know this.
Randall Washington (Randakk)
Pinehurst, NC
2015 Flying Cloud 23FB
2015 Chevrolet Silverado 1500 WT 4WD
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Old 06-06-2016, 10:50 AM   #7
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2005 30' Classic
Burlington , Ontario
Join Date: Sep 2008
Posts: 2,732
Could also be a bad ground connection. I have experienced that on two different trailers.

It can fool you because if you measure voltage at the jack you may find it measures fine but teh jac still may not work because the corroded ground cannot pass enough current to operate the motor.

Similarly, the jack light may function but not the jack motor - the light does not need nearly as much current to illuminate. In this situation you are likely to see the light go out when you try to operate the jack motor.

Brian & Connie Mitchell

2005 Classic 30'
Hensley Arrow / Centramatics
2008 GMC Sierra SLT 2500HD,4x4,Crew Cab, Diesel, Leer cap.
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Old 06-06-2016, 10:56 AM   #8
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DoublTrouble's Avatar
2015 27' FB International
Carlsbad , California
Join Date: Feb 2015
Posts: 571
I had a problem there once too. I thought it was the fuse, but it was actually the wire connector had disconnected.
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Old 06-06-2016, 02:03 PM   #9
WBCCI # 23456
2000 30' Excella
Greeneville , Tennessee
Join Date: Jul 2008
Posts: 163
I had that same problem, the circuit breaker on the living room front wall had tripped. I pressed the little gizzy and all was good.

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