E029
EVBox
LED/Display Panel Communication Fault
Charger shows E029; app indicates display or LED panel error; status lights not working correctly.
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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
Loose ribbon cable to LED/display board, Failed LED driver IC, Damaged front panel PCB, Firmware mismatch with display module
How to Fix / Troubleshooting
Safety: Although the LED panel is low‑voltage, always isolate mains before opening the unit.
- Check app status: Use the EVBox app to confirm the actual charger status; if charging works but LEDs are wrong, the issue is likely limited to the display.
- Power cycle: Turn the charger off and on to reset the display controller.
- Inspect connections (qualified): With power off, remove the front cover and check the ribbon or wire harness between the main board and the LED/display board. Reseat connectors.
- Replace display board: If LEDs remain dead or erratic, replace the front LED/display PCB with an EVBox‑approved part.
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Repair Difficulty
Medium
3/5
Required Part
EVBox Front LED/Display Board
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