Per Recreational Vehicle Industry Association (RVIA) code, certain receptacles in every unit are protected by a Ground Fault Circuit Interrupter (GFCI) system. Try pushing the reset button on the receptacle itself. The GFCI receptacles are typically located in the kitchen and/or bathroom. If the problem persists, try a different component in the receptacle. If the problem goes away, it could be a problem with the component, if the problem still persists, there could be an electrical issue in the trailer. To be safe, have your local CrossRoads dealer check it out.