I installed a levitron 7599-ri GFCI to replace a standard 2 plug receptacle in my sailboat & the GFCI is not working. The Receptacle is the first outlet in-line and has 4 other standard receptacles after it.

When installed the green light on the GFCI illuminates but the outlet and the other downstream outlets no longer work , i.e.no power.

I did push the reset/ test buttons but they do nothing.

I switched back to the old non-GFCI outlet & it works fine again.

Can you offer any advice ?

Could it simply be a defective GFCI outlet ?

Thanks,

Mike.