ktmrfs wrote:
DrewE wrote:
You have power in as much as the lights on the GFCI are illuminating.
A new GFCI wouldn't reset for three possible reasons, provided it does have power:
1. You have a ground fault of some sort downstream. A bit of water in the outdoor outlet would be one quite believable cause for this.
2. You have the line and load connections mixed up (on some models, not all).
3. Very rarely, you got a broken unit from the factory.
add (4) ground and neutral shorted downstream of the GFCI. This will also trip a GFCI.
That is true. I was considering that to be a form of ground fault, but it's good to call it out separately. It's also not too uncommon to find, particularly when putting in a GFCI where one was not previously there, since such shorts can easily go undetected and don't in themselves cause any problems in an otherwise properly constructed and working electrical system.