I use to own an 03 Fleetwood Southwind and had an intermittent problem with the front slide. It took me a loooooooooooooong time, but I finally tracked the problem down. Behind the AC electrical panel in the bedroom. First off you have to remove some screws and remove the metal panel that holds the Circuit Breakers. Once you do that, behind it were to printed circuit boards that control the front and rear slides. Anyway, on mine, one of the electricl plugs going to the printed circuit panel was not tight. The locking tabs were broke, so I just put a tie warp around it and lightly snugged it down. End of problem.
Brian