PCS family
PCS_a059_chgInputOvRms
Unable to charge
What does the PCS_a059_chgInputOvRms alert mean?
PCS charging input RMS over-voltage
What you'll see in your Tesla
- Unable to charge
- Voltage too high - Try a different power source
What triggers it
Charger RMS AC input voltage exceeds overvoltage threshold
When it clears
Charger phase state machine clears faults for phase
Potential impact
Reduced AC charge rate or inability to AC charge
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.