If the volt throws a charging code, it's a latch code. It'll lock out charging until it is reflashed and reset. It's a safety measure. It's the same frustration people have with the coolant sensor and the reason for the bypass mod. It may or may not have damaged something else.
That said, you can reflash it yourself with a SPS sub, but best bet is a dealer trip, and be as vague as possible why the car won't charge. If you mention anything about a surge, lightning or whatever other than it won't charge they will hold it against you.
Then if the code returns after the reset and reprogram they can figure out what is wrong, and if not then you are good to go.
You mentioned trying other chargers, has anyone else with an EV tried your charger?
That said, you can reflash it yourself with a SPS sub, but best bet is a dealer trip, and be as vague as possible why the car won't charge. If you mention anything about a surge, lightning or whatever other than it won't charge they will hold it against you.
Then if the code returns after the reset and reprogram they can figure out what is wrong, and if not then you are good to go.
You mentioned trying other chargers, has anyone else with an EV tried your charger?