Originally Posted by stuart mott
i lefted up the couch and there it is green lie and fan running it looks new it is IOTA DSL 55/iq4 is this new and i can'tget the fuse out
It's definitely much newer than your trailer, and it's a good converter.
The Iota DLS manual
says in a steady on state means the charger is in "float" mode, but it doesn't say what that light should do if the converter isn't connected to batteries, perhaps it would "float" then as well.
Have a look at the manual (linked above) and see if that helps. It mentions fuses installed on the converter itself to protect from reverse polarity and perhaps a short.