E11
Mini Communication Module Failure (Wi‑Fi/Ethernet)

Charger display shows E11; Wi‑Fi or Ethernet LED may be off; remote control via app fails

Advertisements

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.

Advertisements

Possible Causes

Defective communication daughterboard in Mini charger, Loose internal communication module connector, Firmware corruption in network module, Overheating of communication board

How to Fix / Troubleshooting

Note: E11 typically affects remote control and monitoring; local charging may still work.

  • Power cycle: Turn off the charger at the breaker for 2 minutes, then restore power. This can reset the communication module.
  • Check network equipment: Ensure your router or switch is powered and functioning. For Ethernet, verify the cable is plugged in and the port LEDs are active.
  • Internal module check (technician): With power OFF and cover removed, locate the communication module (often a small plug-in board or module on the main PCB). Reseat the module and check for bent pins or corrosion.
  • Firmware update: If accessible, use the Mini service tool or app to check for and apply firmware updates once communication is restored.

If E11 persists, the communication module or main PCB may need replacement. Charging can often continue in standalone mode, but smart features will be unavailable.

Advertisements

Repair Difficulty

Medium 3/5

Required Part

Mini EV Charger Communication Module (Wi‑Fi/Ethernet Board)
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements