Siemens EV charger housing becomes very hot to the touch during normal charging, even at moderate ambient temperatures.

Safety first: Overheating can lead to fire. If the housing is too hot to touch comfortably, stop using the charger until inspected.

• Improve ventilation: Ensure at least the minimum clearance around the charger specified by Siemens. Remove any objects blocking airflow.
• Shade the unit: If installed in direct sunlight, consider adding a shade or canopy that does not obstruct ventilation.
• Check connections: With power OFF, inspect and retighten high-current terminals (L, N, PE, and contactor outputs) to specified torque.
• Fan operation: For models with fans, verify that the fan runs during charging and is not obstructed by dust. Replace if noisy or stalled.

If overheating persists after these steps, internal components such as the contactor or control board may be damaged and should be evaluated by Siemens service.