Just the regular solar that comes on a 2022 Valor 37V13.
2- 320 Watt Solar Panels
40 Amp Charge Controller
100 Amp Hour Lithium Iron Phosphate Battery
Battery Monitor System
3,000-watt solar inverter
battery shunt with monitor
I have not really monitored the amperage because I don't know what it should be. Don't worry about asking questions, happy to supply answers. Everything that is 12v comes off the + battery post where the fuse is that keeps blowing. I added a picture. I have several screenshots of the battery monitor app but none while connecter to 50amp.
Ok, here we go, more questions!
There are at least 3 wires connected to the fuse that I can see in the picture.
Can you confirm 3 is correct?
Can you trace each of those three wires and find where the other end is connected?
At the end of the day, some combination of load or charge rate is passing thru the fuse over time and causing it to blow.
It would be wise to reach out to Alliance Service and see if this is an original set up or not and what the recommended fuse size is for that location.
From 10,000 feet I would think that one of those wires would feed your leveling system and slide outs. Or a buss that in turns feeds your system. The leveling system alone requires a minimum of a 50 amp fuse. The installation instructions state 50-100, many are installing 80’s for colder weather use. To your comment that it doesn’t blow instantly is telling you it is high amp events over time and cycles.
Given that your system is basically trying to run everything (except the other wire in the picture) thru the fuse indicates to me (IMHO) that your fuse is likely undersized for your circuit design.
Once you trace each wire and understand what it is powering, you should use an amp meter to under stand what is being asked of each circuit.
After understanding that, and if this is an original design or not, next steps can determined.
Remember that fuses are really designed and speced to protect the wire/cable , so I find it a bit strange that all three cables appear to be running thru a single 50 fuse.