Roy, I suspect you're right on with the question about the power washer. I suspect there's another GFCI in the bathroom or kitchen area, that supplies your outside outlets and fridge outlet. The power washing could have got water into the outside power outlet and tripped that GFCI. Check it out by plugging any portable appliance, light, etc. into your outside outlet or the fridge outlet (usually inside the outside vent compartment). If no power to those outlets, there's another GFCI somewhere; could even be in a storage compartment. If there is power to those outlets, it's me who is all wet.