Is it all the way out? When you slide it out, the end should tip up when it is fully up. If you are dry camping, you may need to leave it plugged in the TV while it is running or plugged in if you have electrical. Worst case scenario, you can use the manual crank to make sure it is all the way out.
2012 Jayco Jayfeather X213
2004 Dodge Ram 1500 Laramie Quad Cab 4x4