I'm evaluating a friend's 2016 L1 EVSE, the version that has a button for adjustment from 12A to 8A. She claims it cuts out and the car barely takes any charge. the car charges normally from their L2 unit, a Duosida. So far, the L1 unit charges other vehicles fine in testing for an hour or two, but I may have found one anomaly. When using a Leviton Evr-green EVSE Tester (built because what EVSE-installing electrician actually drives an EV to the jobsite?), it trips an external GFCI if I perform the ground fault test. Shouldn't the internal GFCI protection in the EVSE disconnect first? When testing the EVSE on a non-GFCI outlet, the red trouble light comes on and the EVSE disconnects. When testing on a GFCI outlet, the circuit just goes dark. Any other ideas?
I'll give it a full-recharge test soon as I can. Since I'm driving over 150 EV miles per weekday, I don't have much time to fool around on L1!!