Moderator Post (s) for this thread: >GFCIbyBillhart on 07/18/2007
first unplug everything from this and all "downstream" or load side outlets.
Next, press the TEST button. Now fully depress the reset button. (sometimes a trip doesn't fully trip out the GFCI so you can't quite reset it...hitting the test button should fully trip the GFCI outlet).
If it still won't reset, then head back to your CB box and cycle that circuit breaker all the way to off then on (do it twice). Then head back to your GFCI and try the test then reset process again.
Get yourself a three-pronged (looks like a built-in grounded plug) circuit tester with the three or four different lights on the face - plug it in to your gfci outlet - see what it tells you.
Also check the downstream or load side outlets.
If you have one of the newer style "lockout" type GFCI outlets it will not reset if there is a wiring error, fault, etc.
Sometimes a GFCI outlet will fail, sometimes they just can't do their job anymore.
A LOT of them have been recalled, and many have been out on the market that were bootleg. Old style outlets should be replaced. The more times a GFCI has had to cut (otherthan a TEST) the sooner they can go bad.
Replacements can be found for between $8 and $25 depending on where you shop, which grade and manufacturer, and which features they have.