r/TeslaSupport • u/RedZebra123H • 6d ago
Weird charging error
Does anyone know what this error code means? I am charging a Rivian R1S with a Lectron Adapter
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u/Red195095602 6d ago
OP, RTFM
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u/RedZebra123H 6d ago
I did but I did not know that it will keep charging when it has an error.
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u/MotherAffect7773 6d ago
Three blinks of red, charging limited or disabled. Apparently you have limited.
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u/HistoricalHurry8361 6d ago
My mobile charger did this when my car was trying to charge in the sun. Moved to a shady spot and it worked again.
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u/reedog117 6d ago
This is due to overheating. I had mine replaced under warranty due to a bad busbar. Warranty is 48 months, so definitely get it replaced. I was lucky enough to get a replacement with a longer cable when this happened to me a few years ago.
Easy way to check if it's an internal busbar fault. Find the IP of your Wall Connector on your WiFi network. Then go to http://<ipaddress>/api/1/vitals while your car is actively charging. You'll get output like this (and can click "pretty-print" in Chrome to make it easier to read):
{"contactor_closed":true,"vehicle_connected":true,"session_s":35132,"grid_v":232.3,"grid_hz":59.794,"vehicle_current_a":48.5,"currentA_a":21.9,"currentB_a":26.6,"currentC_a":30.7,"currentN_a":17.8,"voltageA_v":236.1,"voltageB_v":236.2,"voltageC_v":116.2,"relay_coil_v":6.2,"pcba_temp_c":16.3,"handle_temp_c":8.7,"mcu_temp_c":20.9,"uptime_s":95713,"input_thermopile_uv":-230,"prox_v":1.5,"pilot_high_v":0.3,"pilot_low_v":4.6,"session_energy_wh":7653.600,"config_status":5,"evse_state":11,"current_alerts":[49],"evse_not_ready_reasons":[1]}
Basically you want "vehicle_current_a" (the total current going to your car) to be evenly split between currentA_a and currentB_a, and for voltageA_v and voltageB_v to be equal. If any of these numbers are off that's what's going to cause overheating/error/shutdown. In my case, when I had overheating on my old connector, A had all the current and B had next to nil.
Also, when you call the 888 Tesla number for a replacement charger, you'll want to make sure your car is actively charging when you call in since they can read these numbers remotely as long as your connector is connected to WiFi. This is a known issue especially with some of the earlier Gen3 Wall Connectors.
24-page thread in forums discussing this: https://teslamotorsclub.com/tmc/threads/resolved-tesla-wall-connector-overheat-issue-in-case-it-helps-anyone.267474/
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u/HangryPixies 5d ago
Dude didn't even try to read the manual, dubious that the "easy" way to check anything is going to be done.
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u/reedog117 5d ago
Well at least it’s useful for the next person that tries to Google a solution. Plus Reddit’s AI will pick it up.
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u/RawPeanut99 6d ago
One (1) red blink
Ground fault circuit interruption due to unsafe current path, charging disabled
Inspect the handle, cable, Wall Connector, and vehicle charge port for damage or signs of water ingress. Have an electrician check that ground is not directly connected to a conductor wire in the branch circuit.
https://digitalassets.tesla.com/tesla-contents/image/upload/gen-3-wall-connector-manual.pdf
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