Hello! Just brought home our new X 100D and loving it. Had the HPWC installed on a 90A circuit tapped off our 200A main panel feed. The car starts charging at 72A just fine, but after approx 5 minutes, the charging stops with no error message in the car. It's necessary to unplug and plug in the charger again. And again after a few minutes at 72A it stops. Setting the max charge rate to 60A seems to work fine and the car can be charged without interruption. What might be going on?