slideout switch not working
I have a 1999 rockwood travel trailer 2602 with no power to slide. have power to the switch but when switch is pressed light on tester goes out??? cannot find a fuse before or after the switch. ground seem ok and battery tests 12.6 volts. switch tests ok when checked for continuity. motor runs fine when run direct off battery. anybody any ideas. i could try a new switch but not sure that's is the problem.