Our coach came with one solar panel on the roof, and we had a couple more 190W panels added shortly after purchasing it.

Early last year I noticed that the solar controller was not receiving a charge, showing the moon icon during the day, and no amps coming in. I got NIRVC to look into that at my next service appointment, and they fixed it by replacing the fuse.

Recently, when the campground we were at had a power cut, I noticed that the problem had recurred:

I removed the panel and found the fuse:

The fuse had indeed blown again:

I didn’t have any mini fuses, so I bought an assortment from Amazon:

Since it had blown twice, I figured that the increased capacity of the two extra panels was the cause, and decided to upgrade the fuse from 25 amps to 30 amps, since that is what the controller is rated at. I have no idea if that was the appropriate choice; if anyone has any guidance, let me know:

The solar controller is now working, with the sun icon and showing 11.6 amps coming in (on a somewhat cloudy day):

The controller re-mounted:

Good to have that working, especially with a week without hookups at the Balloon Fiesta coming up.