GoCable
Energy Measurement Inaccuracy
Charger display shows incorrect or zero kWh usage even after long charging sessions (no explicit error).
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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
Misconfigured internal meter, Faulty CT sensors, Loose meter harness, Firmware calculation bug
How to Fix / Troubleshooting
Note: Charging may still function; the issue is with metering accuracy.
- Compare with vehicle data: Check the EV's reported energy added vs the charger's reading.
- Verify meter configuration: In installer settings, confirm the correct meter type and CT ratio are selected.
- Inspect CT orientation: With power OFF, ensure CT sensors are installed in the correct direction and around the correct conductors.
- Reseat meter harness: Reseat the communication cable between the internal meter and main control board.
- Replace faulty parts: Replace the internal energy meter module or current sensors (CTs) if they test faulty.
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Repair Difficulty
Medium
3/5
Required Part
Internal Energy Meter Module
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