Hello I own 39ft Fleetwood Discovery and the leveling sensor keeps beeping to tell me the jacks are not up even after I verified visually that they are up.   The very loud beeping only stops when Motorhome is in the Neutral Position.   I have tried to cycle the jacks and they will not even lower now.   Do I need to check a certain reservoir?  If so does anyone know where that one is located on the 39RS.