Found outlet on back patio with no power to it. In the electric panel also found tripped GFCI breaker turned breaker back on ,all tests good .I explained to customer that the GFCI breaker trips on moisture and the proper way to rest the breaker,also suggested that after the rain stops to check all the exterior outlets to check if all the weather proof covers are still good and to caulk around the covers for better protection against moisture.