When the reset button on a Ground Fault Circuit Interrupter (GFCI) outlet refuses to stay pushed in and immediately pops right back out, it means the internal mechanical latching solenoid cannot engage. This behavior almost always occurs because there is no incoming electrical power supplied to the receptacle, or because an active ground fault, short circuit, or moisture issue exists on the downstream branch wiring connected to the load terminals. You can troubleshoot GFCI latching faults safely by isolating power at the circuit breaker. You can verify that your corrective action is successful when verifying incoming line voltage, clearing downstream shorts, or replacing a damaged GFCI allows the reset button to click inward and hold power securely.
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