the switch she's talking about is 12vDC and has nothing to do with the 110vAC GFI outlets.
the manual is generic, so don't go by what it says.
you're going to have to trace the wires, looking for a bad connection or break.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC