Charger shows E015; LED ring is red; app indicates external load balancing meter not detected.

Safety first: Turn off power before modifying meter wiring.

• Verify feature use: Confirm in the NewMotion configuration whether external load balancing or smart metering is actually required. If not used, disable it in settings to clear E015.
• Check external wiring: Trace the cable from the charger to the external meter or CT clamps. Look for breaks, loose junctions, or water ingress at glands.
• Inspect CT clamps: Ensure CT clamps are correctly oriented and fully closed around the mains conductors if used.
• Confirm meter power: Make sure the external meter is powered and functioning (LEDs or display active).
• Check communication settings: For Modbus meters, verify baud rate, parity, and address match between the meter and charger configuration.
• Interface diagnosis: If wiring and configuration are correct but E015 persists, the external meter interface on the main PCB may be faulty and require board replacement.