I don't think you can use (triacs) SS relays in an EVSE. Doesn't adhere to the J1772 standard.
Yes, This is true! Not only did they use SSR's, but they don't appear to be heatsinked enough, and a 16A (or more) load could generate enough heat to cause a problem. There will be over 50 watts of waste heat in there while charging a Leaf! Of course, since there is no Pilot, the car will not charge anyway.
Note that other than the safety issue, you will be paying for 50 watts of charging energy that your car will never see!
You'd think the dumba**es would have used a standard contactor, which is would have been cheaper also!
I would ask for a RMA and also apply for a chargeback. You can buy all those parts cheaper than what you paid, and you don't really even need the RFID stuff anyway. Chances are they won't agree to take your unit back, so begin the chargeback at the same time.