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I had my HPWC (gen1) installed a few years ago on a 60 amp breaker and it was happily charging my old car (3/16 build) at 40 amps which was all the car could handle. But my new (3/17) car has a 72 amp charger and it also charges at only 40 amps ;-( So I took the cover off the HPWC and saw that the dip switches were set for a 50 amp breaker (no idea why it wasn't set to 60 all along) so I changed the setting to 60 amps and then the car only was drawing 12 amps!!! I can't understand why this would be as there isn't even a setting in the documentation for a 15 amp breaker. Anybody have any ideas?