Just wanted to confirm same problem with 2015 Micro-Light RBS 21 slideout. Just as Gene and Betty had, we returned from a 10-hour drive with a brand new 21RBS, extended the slide to clean the floor from our first weekend's camping. When we attempted to retract the slide, nothing happened. We did a search on this forum and found this thread. As suggested, I found the red line off the battery, followed it to an inline fuse under the body below the storage comparment. There I, too, found a blown fuse. I replaced the 30-amp fuse and retracted the slide. Moral. If the slide don't work, check the inline fuse first. Thanks for the thread.