03 Islander Slideout Relay Location?

[boomboom]

My friend has an 03 National RV Islander with a living/dining room slide, bedroom slide, and a front slide that contains a deisel powered generator.
The dining/living room slide doesn't work. The solenoid at the hydraulic system does, the adjacent fuses are good, but no power is getting to the switch that powers the slide in and out. Voltage goes into the keyed switch and goes out and back into the wire loom but nothing is getting to the switch that moves the slide. Any sugestions??
Boomboom

[1oldMarine]

My 2001 Islander has a power-gear electric, not hydraulic slide. The power relay is located above the batter bank in front and to the right of the electrical control panel. It has a 6 wire junction, a fast blow and slow blow fuse.