Outlets are 120 volts. Fuse panel is 12 volts. Breakers are 120 volts. GFI outlet needs power to reset. What are you calling the "Master Switch on control Panel". Lights awning and anything else you can use while not plugged in to shore power or gen are 12 volts.Hello all...........The electric outlets in our toy-hauler do not function. Checked GFCI and nothing has tripped. Checked fuse panel..........same. Master switch ob control panel in th "on position". We have lights, awning, etc. Any thoughts???