Wallbox display or LEDs are on, but it does not react to plugging in the vehicle; no relay click, no charging attempt.

Safety first: Turn off power before inspecting internal wiring.

• Check cable integrity: Flex the cable gently near the plug and wallbox while observing if the wallbox ever detects a connection. Intermittent detection suggests a broken conductor.
• Inspect PP wiring: Inside the wallbox, verify that the PP conductor is correctly connected to the control board and socket.
• Socket latch sensor: If the wallbox uses a socket with an integrated latch sensor, ensure the latch moves freely and the sensor wiring is intact.
• Replace cable or socket: If PP continuity is lost, replace the affected cable or socket assembly.
• Control board service: If wiring and hardware are good, the proximity detection circuit on the board may be defective and require replacement.