I have resolved the problem I had with my slideout. As originally suspected, it was an electrical problem in the control circuit. Had the documentation for this rig contained the information that I believe it should have, this problem would have been resolved in about ten minutes.
I finally learned, after a lot of time on the internet, that the slide system was manufactured by Power Gear. They have a great deal of information about their entire product line available online.
My problem was resolved when I found the electrical diagram
here.
I hope that this discovery is of help to others. GULFSTREAM - please document your products with wiring and plumbing schematics.