FC family
FC_a141_CA_vehConn_OT
Charging adapter temperature high
What does the FC_a141_CA_vehConn_OT alert mean?
CHAdeMO DC fast charging is unavailable because the fast charge (FC) electric control unit (ECU) detects that the vehicle charge connector is over the expected temperature.
What you'll see in your Tesla
- Charging adapter temperature high
- DC Fast Charging / Supercharging unavailable
What triggers it
The FC ECU detects that the vehicle charge connector temperature is over the alert threshold.
When it clears
The FC ECU detects that the vehicle charge connector temperature is within expected bounds, or the charge cable is disconnected.
Potential impact
DC fast charging is unavailable.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Track your Tesla's alerts automatically
Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.