A GFCI trip usually means the system detects current leaking toward ground. Moisture in connections, damaged insulation, overloaded circuits, poor-quality cords, water-filled decorations, pinched wire, incorrect connectors, and equipment lying in wet areas are common causes.

Do not repeatedly reset a circuit without finding the problem. Disconnect sections to isolate the affected area, inspect components only under safe conditions, keep connections properly elevated and protected, and follow manufacturer ratings. Electrical work should be handled by a qualified professional when the cause is uncertain.

Weather-related problems can appear only during rain, snowmelt, heavy frost, or wind, so document when the trip occurs and which display section loses power.GFCI tripping, Christmas lights, outdoor electrical, holiday lighting