garygid wrote:OP seems to indicate that the Ready LED was ON, but maybe not?
If the Hot/Neutral of a 120v socket were wired reversed,
presumably the Ready light would be ON, but ...
If the ground check is for current flowing from the 120v Hot to Ground,
then reversed Hot/Neutral would TEST LIKE a missing ground?
And, No-Ground is an ON, but blinking, Ready LED, correct?
Actually the EVSE doesn't care if hot/neutral are swapped, since it breaks both conductors, there is no safety issue with that situation. If the ground is not present or the line voltage out of spec (too low for instance), the unit will flash the ready light an not generate a pilot signal, so the LEAF will not "see" it.
If any of the 3 relays stick or fail open, any of the internal self-checks fail, the pilot is out-of-spec, or a ground leakage is detected you will get a flashing red "Fault" light. The unit will have to be reset in most cases to clear these faults.
The OP emailed me to say he determined it was an open ground (flashing ready light). The problem is resolved!