I believe the relays for the bedroom slide out is in one of the passenger side rear compartments. Have someone activate the slide out while you are at these relays and see if you can find it when it clicks in. Inspect it for good electrical connections. If it all looks OK but still gives you a problem; replace it. Good luck and keep us posted.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7