Forum Discussion
StingrayL82
Jun 22, 2018Explorer II
TreeSeeker wrote:
Hard to say without more information.
It appears that there is a new white wire going to the fuse panel. What is this for?
See picture.
TreeSeeker wrote:
Is the refer the original or a newer one. My original doesn't even have a 12v option, so I am guessing there was new wiring needed for your 12v option.
It is the original Dometic 3-way fridge.
TreeSeeker wrote:
Was the blown fuse for the refer or something else?
The 15-amp fuse never blew. It had some condensation in it and a tinge of brown, but it was intact. The bakelite, to which the bottom part of the brass fuse connector attached, was melted.
TreeSeeker wrote:
When the refer is on 12vdc, it is getting this from the battery which is being charged by the converter which is connected to shorepower (or not).
I don't have a battery in the coach right now, so the PowerMax PM4-100 is supplying the 12VDC to the coach, however it's really supplying a tad over 15VDC, since there is no load on the converter at the moment.
TreeSeeker wrote:
See, its compilcated.
It is, but only if you have my ignorant butt trying to explain it in non-electrical engineer terms. :)
Here's the pic:
White wire goes to 12VDC positive fuse block.
Green wire goes to house battery positive.
Black wire goes to negative buss bar.
Copper wire goes to ground lug on coach frame.

About Motorhome Group
38,763 PostsLatest Activity: Dec 05, 2025