Direct answer: A GFCI with no green light is usually in one of three conditions: it has no incoming power, it is tripped and will not reset, or the GFCI receptacle itself has failed. Start by checking whether the outlet has any power at all and whether the breaker or an upstream GFCI is off before you assume the device is bad.
Most likely: Most often, the green light is off because the GFCI has lost feed power from a tripped breaker or another GFCI upstream, not because the face device suddenly died.
First separate a dead GFCI from a tripped one. If the reset button will not stay in, or the outlet tester shows no power at the line side after the breaker is confirmed on, the next move changes fast. Reality check: some GFCIs work for years with no trouble, but a dark indicator light by itself does not prove the receptacle is bad. Common wrong move: replacing the bathroom or kitchen GFCI when the real problem is an upstream garage, exterior, basement, or panel issue.
Don’t start with: Do not start by pulling the receptacle out of the box or replacing it just because the light is dark.
The lamp, hair dryer, or tester still gets power even though the indicator is dark.
Start here: That points more toward a failed indicator inside the GFCI receptacle than a full power loss. Replacement is reasonable after you confirm the device still trips and resets normally.
Nothing plugged into the GFCI works, and nearby downstream outlets may be dead too.
Start here: Check the breaker first, then look for another GFCI upstream on the same branch before blaming this receptacle.
You press reset and it pops back out, feels mushy, or does nothing.
Start here: That usually means the GFCI is either not getting line power, is wired wrong, or the GFCI receptacle has failed.
The outlet went dead after water got nearby, especially in a garage, exterior box, bath, laundry, or kitchen.
Start here: Treat moisture as the first suspect. Dry conditions out and do not keep forcing reset on a damp device.
A dark indicator and dead outlet often mean the GFCI is not being fed at all. That is more common than an internal electronics failure.
Quick check: At the panel, look for a tripped breaker that sits between ON and OFF. Turn it fully OFF, then back ON once.
One GFCI can protect several downstream outlets. When the upstream device trips, the downstream GFCI can sit there dark and dead.
Quick check: Check garage, exterior, basement, laundry, utility, and other bathroom or kitchen GFCIs and reset any that are tripped.
If line power is present but the indicator stays dark, the reset action is unreliable, or the outlet will not provide power, the device itself is a likely failure.
Quick check: If you have confirmed feed power and the GFCI still will not reset or test properly, replacement is the usual fix.
Water intrusion, a worn device, or a loose terminal can leave the light off and make the outlet act dead or intermittent.
Quick check: Look for dampness, discoloration, a warm face, buzzing, or a loose-feeling plug fit. Stop if any of those show up.
You want to know whether the problem is at this device or somewhere upstream before touching anything.
Next move: If the outlet still has power, the GFCI receptacle may still be protecting but the indicator light has failed. Replacement becomes a reasonable next step after basic testing. If the outlet is dead and nearby outlets are dead too, keep looking upstream for lost feed power or a tripped protective device.
What to conclude: A dark light with working power is different from a dark light with a dead outlet. Separate those early and you avoid chasing the wrong problem.
This is the most common real-world fix, especially when a bathroom or kitchen GFCI suddenly goes dark for no obvious reason.
Next move: If the green light comes back or the outlet powers up, the problem was upstream and this GFCI may be fine. If the breaker is on and no upstream GFCI was tripped, move on to the local reset check.
What to conclude: A dead GFCI often turns out to be a downstream victim, not the source of the problem.
Button behavior tells you a lot without opening the box. A GFCI that will not latch is usually missing feed power or has failed internally.
Next move: If RESET latches and the outlet comes back, monitor it. A one-time trip can happen, especially after moisture or a temporary load issue. If RESET will not stay in, or the outlet remains dead with no light, the next question is whether line power is reaching the device at all.
Once the breaker is confirmed on, upstream GFCIs are checked, and the local reset still fails, the device becomes the leading suspect.
Next move: If the symptoms line up cleanly with a failed GFCI receptacle, replacement is the normal repair. If you are not confident that feed power is present, or the symptoms are intermittent, do not guess. This is where an electrician should verify line power and wiring condition.
A new device is the right fix only after you have ruled out the common upstream causes and there are no signs of a larger wiring problem.
A good result: If the new GFCI tests and resets normally and the green light behaves as expected, the repair is complete.
If not: If the replacement acts the same way, the receptacle was not the root cause and the branch needs professional diagnosis.
What to conclude: A successful replacement confirms the old GFCI receptacle had failed. A repeat failure points upstream, not to another new device.
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No. A dark green light often means the GFCI has lost feed power from a tripped breaker or an upstream GFCI. The receptacle itself becomes the likely failure only after those checks are done.
That usually points to a failed indicator inside the GFCI receptacle. If the outlet still powers loads and the built-in TEST and RESET functions work normally, replacement of the GFCI receptacle is the usual fix.
That usually means the GFCI is not getting proper line power, the device has failed, or there is a wiring issue. First confirm the breaker is on and no upstream GFCI is tripped. If those are ruled out, the GFCI receptacle is a strong suspect.
Yes. One upstream GFCI can protect several downstream outlets. When the upstream device trips, the downstream GFCI can sit there with no light and no power even though it is not the original problem.
Not based on this symptom alone. A dark GFCI light is usually a receptacle or upstream outlet issue, not a breaker replacement call. If the breaker trips repeatedly, runs hot, or will not reset, that is electrician territory.
If the outlet still works, you should still replace it soon because you cannot rely on the indicator anymore. Until then, verify that the built-in TEST and RESET buttons actually interrupt and restore power. If they do not, stop using it and replace the GFCI receptacle.