Hello there, neighbor!
Not sure that is any help but you are close by!
I might tend to look it over a bit before jumping to change the whole unit. Part of that for me would depend on how vital the items that fuse feeds? I did some looking at drawings of the RV and got some conflict with what they show as OEM as built and you finding 20 Amps fuse?
The drawings here:
https://www.winnebago.com/Files/File...ram/Wiring.htm
Not certain which build, early or late but both seem to show 15 amp fuses if I read where and which fuse you mean?
Maybe look at the 12 volt installation drawings to check what I am seeing?
OR do you have any indication that shows that is a 20 amp from build or somebody may have added a higher rated at some point?
What I was hoping to check was what it fed but ran into the questions first!
Are you aware of the wire /circuit ID chart from Winn?
https://www.winnebago.com/Files/File...ical_guide.pdf
If you find and ID like JF for example, the chart may help to sort what that fuse feeds?
My move might be to find what it means if I'm on a trip and it goes out for sure and leaves me without!
since replacement parts seems out and replacing the whole unit may be tough, perhaps the loss of the circuit is nothing critical if I just let it ride?
It always seems to come down to needing to balance the trouble of fixing now when it may not become a real problem or how bad does it hurt me if it fails on a trip!