Once again, thanks everyone for your input!
We haven't tried to work the steps manually. However, Jim just got around to taking a look today, and he did find a blown fuse, #5. Don't have a replacement. We're rolling out in the morning from this campground in Fort Smith, MT. We should be able to find one tomorrow along the way, and I'll report back as to whether that is the fix.
Now, our hot water heater isn't working! Well......at least the fishing has been good!