E10
Polestar
Line-to-Neutral / Phase Configuration Error
Charger display shows E10; no charging; often appears after incorrect wiring or neutral issues.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Neutral and earth reversed at supply, Missing neutral on required terminal, Incorrect phase sequence on three‑phase model, Faulty line configuration detection on control board
How to Fix / Troubleshooting
Safety first: Only a licensed electrician should modify supply wiring. Turn off the main breaker to the charger before inspection.
- Verify connections at supply panel: Confirm that line, neutral, and earth conductors are correctly identified and terminated in the distribution board feeding the Polestar charger.
- Check internal terminal labeling: Open the charger and compare the wiring to the terminal markings (L1, L2, L3, N, PE). Correct any mis‑wiring according to the Polestar installation manual.
- Phase sequence (three‑phase models): If the charger requires a specific phase sequence, verify with a phase rotation tester and correct as needed.
- Controller check: If wiring is correct and E10 persists, the line configuration detection circuit on the main control board may be faulty and require replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Polestar Input Terminal Block
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