Sorry, dramatic post title but couldn't resist...
I had a Gen3 wall charger installed last year - only thing on a 50A breaker, firmware set to limit charging to 40A, car set to 40A. Last week noticed a burning smell from the Romex. Electrician came out today and measured current at the breaker at 105A (explains the burning smell). We stepped car down to 30A and 20A - at 20A there's 43A coming thru the breaker.
I'm stumped here. More importantly, my electrician is at a complete loss after five hours examining the circuit. If the car's receiving 40A but there's 105A coming thru the line, where's the excess energy going? The wall charger isn't hot (and the car hasn't exploded), but general voltage drop doesn't seem to be an appropriate explanation.
What do I do next? Do I try a warranty claim with Tesla and get a new charging unit? Help and advice greatly appreciated.
I had a Gen3 wall charger installed last year - only thing on a 50A breaker, firmware set to limit charging to 40A, car set to 40A. Last week noticed a burning smell from the Romex. Electrician came out today and measured current at the breaker at 105A (explains the burning smell). We stepped car down to 30A and 20A - at 20A there's 43A coming thru the breaker.
I'm stumped here. More importantly, my electrician is at a complete loss after five hours examining the circuit. If the car's receiving 40A but there's 105A coming thru the line, where's the excess energy going? The wall charger isn't hot (and the car hasn't exploded), but general voltage drop doesn't seem to be an appropriate explanation.
What do I do next? Do I try a warranty claim with Tesla and get a new charging unit? Help and advice greatly appreciated.