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Old 07-14-2020, 07:10 PM   #1
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Brand: Thor Motor Coach
State: Nevada
Posts: 12
THOR #10433
Trailer plug 12 volt fuse location

I have a 2016 Thor Miramar 34.4. The fuse has blown for the 12 volt power to the 7 pin plug on the back. I can't figure out where the fuse is located. I checked the fuses under the dash and the ones in the engine compartment but can not find which feeds the plug.
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Old 07-14-2020, 08:01 PM   #2
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Brand: Thor Motor Coach
Model: Windsport 29m
State: Florida
Posts: 401
THOR #8069
On my 2018 Windsport Camping world told me it is in the engine compartment.
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Old 07-15-2020, 06:53 PM   #3
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Brand: Thor Motor Coach
Model: Windsport 31S
State: Oregon
Posts: 8
THOR #19629
I have the same problem with my 2017 Windsport, no power to 7 way trailer connector plug in and cannot find a bad fuse. Checked under the dash and under the hood, all are good...relay?

Any help is appreciated...

Chris
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Old 07-15-2020, 07:57 PM   #4
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Brand: Thor Motor Coach
Model: Thor Tuscany 40DX
State: Colorado
Posts: 93
THOR #5043
My experience is that it may not be an obvious blown fuse but one that was never installed. Look for an empty hole! My 2 cents worth.
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Old 07-15-2020, 11:09 PM   #5
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,144
THOR #2631
I am not sure if the attached schematic will help since it says Challenger, Miramar for 2013 (If I read it correctly). In many cases chassis wiring may stay the same over the years so its worth a try. Check out the Trailer 7 pin wiring assignments on the left side of the drawing.....says for the "charge line", black wire; ignition switched; a 30 amp in line fuse on the fire wall.......good luck with that, but it's a start. Hope it helps you out.
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File Type: pdf Challenger trailer and tailight wiring.pdf (102.5 KB, 17 views)
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Old 09-27-2020, 09:01 PM   #6
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Brand: Thor Motor Coach
Model: Hurricane 27K
State: Wyoming
Posts: 14
THOR #8160
Battery charge pin on 7 pin connector

I spent hours searching for the fuse that powered the 12 Volt battery charge pin on my 7 pin connector. The Thor folks insisted it was in the Ford fuse box under the dash on the drivers side.

I finally located it in the fuse panel installed by Thor. It's located just to the left of the Ford box drivers side under the dash. It is a 30 AMP fuse located down between the 4 relays located in the box. If you need a photo I can post one.
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Old 09-29-2020, 04:55 PM   #7
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Brand: Thor Motor Coach
Model: Windsport 31S
State: Oregon
Posts: 8
THOR #19629
Dan, if you can share a pic without too much trouble that would help. I thought I checked all of those fuses...but heck, happy to try again to finally fix this issue.

Cheers!
Chris
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Old 09-29-2020, 08:00 PM   #8
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Brand: Thor Motor Coach
Model: Hurricane 27K
State: Wyoming
Posts: 14
THOR #8160
Thor Fuse Panel

Here is a drawing of the Thor Fuse Panel. It is fuse F5. In my fuse box it is a 30 amp. I believe there is a schematic of the fuses on the inside of the box cover.

Dan
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