Charger shows E25; display may indicate ‘Overvoltage EV’; vehicle reports high voltage at inlet.

Safety first: Overvoltage can damage the vehicle. Do not continue using the charger until the cause is identified. Turn off power at the breaker.

• Confirm supply voltage: Have an electrician verify that the supply voltage matches the Polestar charger’s rating label.
• Inspect internal wiring: Check that the output wiring from the contactor/power module to the cable is correctly connected and not cross‑wired.
• Check for modifications: Ensure no unauthorized changes have been made to the charger’s internal wiring or components.
• Module/board replacement: If wiring and supply are correct, the power module or voltage sensing circuit may be defective. Replace the Polestar power module or main control board via an authorized service provider.