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04-23-2019, 02:50 PM
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#1
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Junior Member
Join Date: Feb 2019
Posts: 6
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Tongue Jack has no power
Just returned from a trip with our 29 RSWS. Great trip with no problems. Except that when we got home and went to disconnect the trailer from the truck, the automatic tongue jack had no power. The trailer itself did, as the outside lights still worked, but the jack itself and the LED lights on the jack did not. Any ideas why that would lose power? We ended up manually cranking it.
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04-23-2019, 02:52 PM
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#2
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Senior Member
Join Date: May 2017
Posts: 161
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Is there a fuse in the line for the jack? It may be next to the battery.
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04-23-2019, 02:55 PM
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#3
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,802
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Every electric tongue jack I've seen, has an inline fuse.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.) 
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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04-23-2019, 02:57 PM
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#4
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,144
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Quote:
Originally Posted by bikendan
Every electric tongue jack I've seen, has an inline fuse.
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Yep fused or 12v circuit breaker.
Have you checked at the jack for 12v?
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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04-23-2019, 03:16 PM
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#5
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Senior Member
Join Date: Apr 2016
Location: Cedar Creek Lake, TX
Posts: 3,484
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The switch itself sometimes goes bad. Will often go up, but not down, or vice versa. Check the fuse first but if it is good check the switch.
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Cedar Creek Lake, Texas
2019 Keystone Loredo 290SRL
2019 Ram 2500 4x4 Cummins crew cab
Andersen hitch
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04-23-2019, 03:18 PM
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#6
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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You may have to remove the housing on the jack. My jack has a fuse inside the housing.
__________________
Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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04-23-2019, 04:54 PM
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#7
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Senior Member
Join Date: Jul 2018
Location: Baraboo, WI
Posts: 611
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I have had more problems with the mounting bolts being very slightly rusted which results in a bad ground. Try loosening the bolts and then resnug them. I had a problem with this on two TT. the only ground is through the mounting bolts.
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04-24-2019, 01:41 PM
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#8
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Senior Member
Join Date: Aug 2016
Posts: 158
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Tongue jack no power
Bad ground
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04-24-2019, 02:30 PM
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#9
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Senior Member
Join Date: Jun 2018
Posts: 445
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Is it a Smart Jack? How old? Our brand new one was under recall but hadn't been replaced. Found out the hard way at a CG around 5 in the morning during a heavy rain when the TT started going up and down. Then it just died.
__________________
2018 Rockwood Signature Ultra Lite 8311WS
2014 Coachmen Apex 215RBK
2018 GMC Sierra 2500HD SLT Duramax
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04-24-2019, 02:55 PM
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#10
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Senior Member
Join Date: Sep 2015
Posts: 446
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I've had this happen twice now. Mine has an inline mini-fuse in the wire coming from the trailer to the tongue. Both times pulled the fuse, looked fine but would not allow power to the jack. Replaced the fuse both times and the jack worked as usual...go figure...
__________________
2016 Microlite 21DS
2014 Ram 1500 QC 6 cyl. 8 spd.
Blue Ox SwayPro
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04-24-2019, 04:26 PM
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#11
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Member
Join Date: Apr 2019
Location: Michigan
Posts: 88
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We had a similar Problem
The fuse for our jack was inline just above the hitch frame. The fuse is in a retangular thin rubberish holder whose top pulls off. Our fuse was blown and needed to be replaced. After it was replaced the jack wouldn't go down at all. It would make noises like like it was trying. From reading the forums I gathered these tibits of jack wisdom.
1) If you bring the jack too far up (like at or past the red line) it will blow the inline fuse.
2) If you extend the jack down too far (as in trying to take the pressure of the bars of your Husky Load Bearing Hitch), you risk breaking the gears and stuff that allows the electric motor to go up/down.
I used the manual cranks to "free" the jack and the electric motor would move the jack up/down about 6" that is all. So I had to manually crank it the rest of the way.
I called the dealer April 22nd and my service appointment is May 30th.
What I wonder is if I should buy a new Barker or Huskey jack which i hear have steel bits inside that won't break?
The Cahoons, Tim & Nancy
2019 235S Rockwood ROO (1st Time RVrs)
(end of year sale model, new unit)
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04-24-2019, 04:28 PM
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#12
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Senior Member
Join Date: Apr 2016
Location: Port Charlotte Fl/Hinsdale Ma
Posts: 4,823
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Quote:
Originally Posted by windsurfdog
I've had this happen twice now. Mine has an inline mini-fuse in the wire coming from the trailer to the tongue. Both times pulled the fuse, looked fine but would not allow power to the jack. Replaced the fuse both times and the jack worked as usual...go figure...
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you can not check a fuse by looking at it.
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04-24-2019, 10:47 PM
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#13
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Senior Member
Join Date: May 2018
Location: Texas
Posts: 1,371
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Jack fuse
On my Flagstaff it is in a green plastic fuse holder 2' back in the "A" frame behind the battery. I have a fuse for my front slide also, next to the jack fuse. We found that if we operated these 2 things at once, it blows this fuse. Our error, they do not need to be done @ the same time.
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