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12-19-2017, 08:36 PM
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#1
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Senior Member
Join Date: Oct 2017
Location: DFW
Posts: 170
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Installing a 30 amp breaker?
Considering mounting a 30 amp breaker to replace the 30 amp fuse on the front of our new trailer. I have blown way to many fuses already, whether it be lifting the electric jack up or moving the slide in and out. Is this a good idea and how difficult is it?
Thanks
P.S. Pics would be great!
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12-19-2017, 08:52 PM
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#2
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,859
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You talking about a DC fuse?
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12-19-2017, 08:56 PM
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#3
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Senior Member
Join Date: Mar 2015
Location: Odessa
Posts: 409
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Resetting fuse
The big box auto stores have a " fuse " ( it may be called a circuit breaker ) that will direct replace a blade type fuse - not very expensive ( maybe less than $10 if I remember correctly ) a slow blow fuse may also work for you
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12-19-2017, 08:59 PM
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#4
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,859
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The auto reset dc breakers I have seen will leave you stranded for a few minutes until they reset themselves.
I would try a slow blow fuse or correct the problem that causes it to blow!
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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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12-19-2017, 09:48 PM
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#5
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Senior Member
Join Date: Oct 2010
Location: Merrimack NH
Posts: 917
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I think I would chase down the cause of the blown fuses. You could be setting your self up for a fire and that would not be good Larry
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Larry & Rachel Demers 2013 F150 Eco Boost Super Cab 6.5 bed 6 sp. 3.31 4x4 White Hawk 28DSBH
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12-20-2017, 07:21 AM
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#6
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Senior Member
Join Date: Sep 2010
Location: Waukesha
Posts: 608
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A fuse blows for a reason. You need to find the cause before you burn the house down.
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Rod and Linda
SE Wisconsin
2018 330RSTS
2015 Silverado 2500 
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12-20-2017, 07:24 AM
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#7
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Senior Member
Join Date: Aug 2014
Location: Alberta
Posts: 557
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Quote:
Originally Posted by rodro123
A fuse blows for a reason. You need to find the cause before you burn the house down.
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This....Or just replace with a 50 amp. 
No! Find why it’s blowing! Then determine course of action.
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12-20-2017, 07:33 AM
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#8
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Site Team
Join Date: Jan 2011
Location: James Island, SC
Posts: 22,859
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Usually it's holding the up or down button on the front jack past the end of it's travel.
On my fifth wheel, I have the bottom and top marked with a line. Otherwise keep a nice supply of 30a fuses on hand.
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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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12-23-2017, 03:40 PM
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#9
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Senior Member
Join Date: Oct 2010
Location: Merrimack NH
Posts: 917
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Don't increase the amperage of the fuse, the wiring is sized for 30a, if you go to a 50a fuse you will cook the wiring. Changing to a 30a breaker would be the thing to do if you don't find out the reason those two items have a problem. It could be as simple as holding the sw's too long and the fuses doing their job, blowing before the motors overheat and cooking the wiring or them selves. Larry
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Larry & Rachel Demers 2013 F150 Eco Boost Super Cab 6.5 bed 6 sp. 3.31 4x4 White Hawk 28DSBH
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12-23-2017, 08:17 PM
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#10
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Senior Member
Join Date: May 2016
Location: Milpitas
Posts: 1,628
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30 Amp Breaker
I installed this one. It was simple and straight forward. It took me about 15 minutes. I agree with the above, that there may be many reasons. So far I blew my fuses by attaching the battery wrong, hitting the front cap with my ratchet, and it blew another time for unknown reasons. Just got fed up and followed the advice of someone here on the forum. Note that I installed it on the cover of the existing junction box which made it very simple, no need to extend any wires.
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12-24-2017, 07:27 PM
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#11
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Senior Member
Join Date: Oct 2017
Location: DFW
Posts: 170
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Quote:
Originally Posted by travelingjw
I installed this one. It was simple and straight forward. It took me about 15 minutes. I agree with the above, that there may be many reasons. So far I blew my fuses by attaching the battery wrong, hitting the front cap with my ratchet, and it blew another time for unknown reasons. Just got fed up and followed the advice of someone here on the forum. Note that I installed it on the cover of the existing junction box which made it very simple, no need to extend any wires.
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Would this one work?
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12-24-2017, 11:29 PM
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#12
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Senior Member
Join Date: May 2016
Location: Milpitas
Posts: 1,628
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Yes
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2019 Chevy express 2500 Van Coversion. 2017 Jayco 23MRB: 26' total and Glacier Package. 2 Renogy solar panels. Married 49 years. Haley the mutt, 4 years old. "Excited to learn new things everyday and humbled by those who offer to help." And very grateful to our Moderators!
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