When a Ground Fault Circuit Interrupter (GFCI) safety outlet trips repeatedly or instantly even when absolutely nothing is plugged into its receptacle slots and no active load is drawn, it proves definitively that the issue stems from permanent wiring faults or environmental conditions. Primary causes include moisture trapped inside outdoor, garage, or bathroom junction boxes creating a ground path, pinched wire insulation touching the grounded metal electrical box, or incorrect wiring where incoming line power wires are mistakenly connected to the "Load" terminals instead of the "Line" terminals. You can troubleshoot persistent tripping safely by shutting off the main circuit breaker. You can verify that your corrective action is successful when drying wet junction boxes, correcting wiring errors at the terminals, or clearing pinched wires allows the GFCI to reset and hold power securely under a zero-load condition.
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