CC family
CC_a007_inputOverVoltage
Unable to charge - Input voltage too high
What does the CC_a007_inputOverVoltage alert mean?
Alternating current (AC) root mean square (RMS) input voltage is too high.
What you'll see in your Tesla
- Unable to charge - Input voltage too high
- Voltage must be within Wall Connector rating
What triggers it
AC RMS input voltage exceeds 320 V RMS for North America (NA) or 290 V RMS for Europe (EU)/China (CN) for more than 2 seconds.
When it clears
AC RMS input voltage falls below 310 V RMS for NA or 280 V RMS for EU/CN for more than 2 seconds.
Potential impact
Wall connector will not allow charging while the input voltage is too high.
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.