No other switch that I know of but it sounds like the remote has lost programming. Find the fuse to spot light and remove it for a minute. If I remember, reinstall the fuse while holding down the on/off button on remote for 10 seconds. This should reprogram the remote. If that does not work, please consult the manual. 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