Looking at the pictures in my manual, 19 should be a 100 amp fuse. There's also a 50 amp ignition fuse, I'd look at it to see if it is blown. Both are fuses, you should be able to visually inspect to verify if they are blown or not.
The problem is, if the fuse is blown and you replaced it with a good fuse, then that fuse blows, there something that needs to be addressed.
The problem is, if the fuse is blown and you replaced it with a good fuse, then that fuse blows, there something that needs to be addressed.