Yamaha EF2600FW Owner's Manual page 49

Generator won't produce power
2 Safety device (AC switch) to " 3 " (OFF) .... Turn
the AC switch (N.F.B.) to "I" (ON).
2 Safety device (DC protector) to
Press to " I" (ON) the DC protector.
(Except for EF2600)
– 42 –
(OFF) ....
" 3 "