A blinking red status indicator light on a Leviton GFCI outlet signifies an end-of-life condition or a failed internal self-test, indicating that the device's internal monitoring circuitry can no longer guarantee protection against ground faults. To resolve this, first attempt to press the TEST and RESET buttons to force a manual power cycle. If the red light continues to flash rapidly or solid red persists, the GFCI has reached the end of its functional life and must be replaced immediately. Verification: Turn off power at the main breaker, remove the failed unit, install a new Leviton GFCI receptacle following correct line and load wiring, and restore power to confirm the indicator turns solid green or off normally.
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