Assuming your '95 is the same as my '97, the port side GFCI is located on the bulkhead behind the hatches for the fridge. That GFCI protects[I] all [/I]outlets on the port side, include the one in the head and forward cabin. It could be tripping due to a true ground fault on any of those outlets, or the GFCI outlet itself could be failing. GFCI outlets aren't all that expensive, so replacing it would help narrow down the cause, assuming you know how to do so and turn off the AC; I'd unplug the shore power cord.

My starboard side outlet trips once in a blue moon, never could figure out why. The I was onboard in the slip one day when a lightning storm came through. GFCI popped about a half second before I heard a loud clap of thunder. Hmmmm, wonder if that was the cause? Nothing is plugged into any outlet.

The load on the circuit is irrelevant to the GFCI tripping, an overload would trip the AC breaker on the main panel.

Our starboard side one trips all the time in cold weather like at this time of year if I'm working on the boat I'll have to reset it 2 or 3 times before the lights will stay on. But all summer long it's fine. Probably should just replace it.

Tony, you probably will remember, but just in case you have forgotten, don't forget to turn the inverter off as well. An electrician who specializes in boat elelctrical systems has been bugging me about adding a shutoff switch to my inverter. He says that all boats with inverters that come installed from the factory are reuired to have a shut off switch to be considered safe.

I actually have a blank spot on my board that is even marked CHARGER/INVERTER. It's just another one of those projects on "The List".