I hooked up this weekend to head out for some father's day camping. After getting shore power disconnected and the TT hooked up, I did my walk around to make sure everything was functioning before heading out. That is when I noticed that the refrigerator was not working. That led to a troubleshooting session and I realized that I was not getting power from the battery to any part of the camper (battery was just taken off of the charger).
After crawling under my TT with a multimeter I found the problem at this point (see attached photo's). I have no idea what it is, but if I jumper it the 12V system works fine. I was hoping someone could give me the name of this part. I assume it has a function so I only jumpered to keep the fridge working and the trailer brakes during my pull down to camp. I disconnected before I connected to shore power. Any thought on what this is so I can purchase a replacement?