One Sunday morning we were packing up to leave and my full slide wouldn't move. I went over all of wiring and checked all the fuses and couldn't find anything wrong.I didn't want to call an RV service on a Sunday. When all else failed I read the directions on retracting the slide. One of the first thing it said was to close the rear tv that hinges out. Low and behold the TV was not latched and there is a magnetic switch to disable the slide so you don't take out the TV. Has worked great ever since. When all else fails follow the directions!;)