The indicator light on a modern GFCI outlet typically displays a solid green or blue color during normal, healthy operation, signifying that power is active and the internal self-test monitoring system is functioning correctly. If the indicator light is completely off, it usually means the unit is unpowered, tripped, or has experienced an internal component failure. If the light is flashing red or amber, it serves as a critical warning indicator denoting an active ground fault, wiring error, or end-of-life sensor failure requiring replacement. Verification: Check the manufacturer's specification label on the outlet face to confirm the exact LED status color meanings for your specific model.
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