From our cruise notes up the coast in 2016:if you trip the GFCI do all the other outlets go dead? There is a line and load side to a GFCI so that you can chain outlets and have them protected.
The A.C. power went out to the outlet in the galley and the microwave. I mentioned it and Morgan said his outlet had stopped working, too. I had originally thought of having to take the galley outlet apart. But then I realized that when we first got the boat I had installed a GFI outlet in Morgan’s cabin. I hopped up and pressed the Test and then the Reset buttons and we’re back in business, no fuss, no muss. Morgan saved me a lot of unnecessary work. He said he could well have inadvertently pushed the test button, since he spends a lot of time in his cabin.