Charger displays E08 or 'Overtemperature'; charging stops mid‑session or will not start until unit cools.

Safety first: If the charger housing feels very hot, stop using it and turn OFF the breaker until it cools.

• Check installation location: Ensure the charger has the required clearance around it (per Volvo manual) and is not installed in direct sunlight or near heat sources.
• Inspect vents and seals: Clear any dust, cobwebs, or obstructions from ventilation slots. Do not cover the charger with any enclosure that restricts airflow unless approved by Volvo.
• Check cable and terminals (power OFF): Remove the cover and inspect high‑current terminals and the contactor for signs of overheating (discolored insulation, smell of burnt plastic). Tighten loose terminals to spec.
• Allow to cool and retest: After cooling for at least 30–60 minutes, restore power and attempt a charge. Monitor temperature by touch; it should be warm at most, not hot.

If E08 recurs in normal ambient conditions and with good airflow, the internal temperature sensor or control board may be faulty. A technician can test the sensor and replace the board if necessary.