HI - wondering if others had similar issues and what they did to fix it:
Got my Model 3 in March with the Gen 2 mobile connector and had a NEMA 14-50 installed at home. When charging at the full 32amp current, often after 10-15min it "craps" out and just stops charging. only message I get is "Charging has stopped" and it's not anywhere close to the 80%. When I set the current to 24amp it usually always completes the charging process to the set target charge. No one so far could definitively tell me what is going on. I was at a Tesla Service center and they plugged it into their 14-50 but could not reproduce the issue, when I go to level 2 public chargers also no problems as well as no problems at superchargers. so all that points to an issue in my house.
One thing I noticed is that during weekdays my voltage on the screen shows anywhere between 242 - 248 volt and sooner or later the charge is going to interrupt again. on weekends during the lockdown I noticed that the voltage is running more between 236 - 240 V max and on those days, the charge goes through for hours with no issues. Does anyone know what the "tolerance" of the car is regarding the voltage and has anyone had the issue with voltage at the higher end in their house and has some mitigations put in place? My electrician is running out of ideas and a Tesla certified electrician did not got me much further either.
Got my Model 3 in March with the Gen 2 mobile connector and had a NEMA 14-50 installed at home. When charging at the full 32amp current, often after 10-15min it "craps" out and just stops charging. only message I get is "Charging has stopped" and it's not anywhere close to the 80%. When I set the current to 24amp it usually always completes the charging process to the set target charge. No one so far could definitively tell me what is going on. I was at a Tesla Service center and they plugged it into their 14-50 but could not reproduce the issue, when I go to level 2 public chargers also no problems as well as no problems at superchargers. so all that points to an issue in my house.
One thing I noticed is that during weekdays my voltage on the screen shows anywhere between 242 - 248 volt and sooner or later the charge is going to interrupt again. on weekends during the lockdown I noticed that the voltage is running more between 236 - 240 V max and on those days, the charge goes through for hours with no issues. Does anyone know what the "tolerance" of the car is regarding the voltage and has anyone had the issue with voltage at the higher end in their house and has some mitigations put in place? My electrician is running out of ideas and a Tesla certified electrician did not got me much further either.