12 v 15a fuse blows instantly - 30a fuse gets really hot...

[MyRVRadio]

So glad you found the problem @rbtintx ! Any short like that could be dangerous to you and your rig.

[Malco1]

I have no idea how Solitudes are wired but if this started after a move I would look at the wiring in the slides where the lights don’t work. In the Reflection 337 they put DC wiring on the floor under the bed platform that get ripped apart when the slide moves. May be something similar in your case. Just a guess.

+1 Check the slid-out.

[rbtintx]

UPDATE: Outdoor Kitchen Sink Pump is the root of the short. I was running the water in the outdoor kitchen and the pump was not running to move the water to the grey tank. I opened it up and the pump was submerged and not running. I disconnected the wires and did a continuity check - fail. I disconnected the pump and put a new fuse in the panel. Power restored. Next up: Replace the water pump in the outdoor kitchen.

I contacted Grand Design and they are replacing the pump at no cost - which is great since the rig is no longer under factory warranty.