User`s manual

page 15
Step #3: Testing the Power Inverter
After you make sure the 12 volt power is wired properly to the
power inverter, with nothing plugged into the 115 VAC outlets,
turn the power switch on the power inverter to On. The green
POWER light will turn on.
If the inverter does not operate properly and the POWER light
does not illuminate, turn the power switch off and check your
wiring and external fuse.
With the inverter turned off, plug the appliance you want to use
into the 115 VAC power outlet on the unit. Turn the power
switch on the power inverter on so the green POWER light is
illuminated. Turn on the appliance. The appliance should now
be operational.
Check the Troubleshooting section if you have any difficulties.