I just had a very similar situation on my 91 H28. I left the boat for a week after staying aboard for three days. When I came back, the plug outlet on the port side on the stove cabinet wall was dead. I checked/reset the CB which is on the shorepower box in the laserette. Still no go. I then checked the GFCI in the rear state room on the closet wall. It would not reset. I then installed a new one. It was connected to the load connections, and I installed the same way. Still, I have three of the four outlets dead. I have not gone any farther with my trouble shooting. When you fix yours, give me a clue. I am thinking I will have to start taking plugs apart and checking out each circuit. It is in the 90's so I have been putting it off.