15amp fuse at 7 wire trailer conection

[Shag]

I found a blown 15amp fuse on a wire coming from the hot lead on the 7 wire connection box. It is spliced to a purple/white wire that goes into the interior on the trailer. It is grouped with 2 white and 1 hot wire. Everything seems to work but I have not tried the hot water heater.
2017 passport RWLE

[LHaven]

According to the Keystone Color-Coded Unified Wiring Standard Tech Guide," 10-gauge purple appears in the "Power Feeds & 7-Way Trailer Connection" chart for "Electric Slide-Out Feed/Single Conductor." I can't imagine that a slide-out feed runs through the 7-way connector, but they share the same chart. Every other purple in any of the charts belongs to a slideout category and is also 10-gauge.

The only other color approximating purple is some pink leads -- an 18ga to the water heater, 14ga to most of the accessories, and a 10ga to the 12V accessory outlet.

If you search around the forum for that document title, you can find your own copy.

[Shag]

Okay, I just bought this trailer 3 weeks ago. The previous owner had some work done on the slide out. But it works maybe there was a little modification to the wiring. It looks like a 10g up front. Thanks for giving me some direction.

[Shag]

FYI, at the in-line fuse holder it is taped with what looks factory "15amp fuse only"

[LHaven]

Of course, if the previous owner added circuits, he would have used whatever color cable was on sale at AutoZone, and the labeled fuse holder could be from there as well. I myself have added a few yards of red and white to the auxiliary circuit...

[Shag]

Did a little poking around in between all the day to day stuff. The wire is for my "solar prep", I popped the adapter off and they spliced the red wire to a purple one. Checked with my meter and that's it.