This post will get you going. Be sure to look at the PSA video in post #22 over there.Can you elaborate on your OEM at 240V setup? Are you using a 120V-to-240V dongle? If so, can you recommend one? I've seen that the OEM EVSE is 240V capable (made by Clipper Creek), and it's best to have a certified electrician set it up for 240V charging (NEMA connector from the panel) with a dongle to step up to 240V.