E11
Zencar
Network / Communication Module Fault
Charger shows E11; Wi-Fi or app connection may fail and charging may be disabled.
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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
Failed Wi-Fi/Bluetooth module, Corrupted network configuration, Loose module connector, EMI interference affecting communication bus
How to Fix / Troubleshooting
Safety first: Network issues are usually low risk electrically, but always power down before opening the unit.
- Reset network settings: Use the front panel or Zencar app to reset network settings to factory defaults, then reconfigure Wi-Fi.
- Power-cycle router and charger: Turn off your Wi-Fi router and the Zencar charger for 2 minutes, then power them back on and test.
- Inspect communication module: With power OFF, open the charger and locate the Wi-Fi/Bluetooth module (often a small daughterboard). Reseat its connector and ensure its antenna cable is intact.
- Reduce interference: Move high-EMI devices (large motors, inverters) away from the charger if possible.
- If E11 remains and charging is blocked: Replace the Wi-Fi/communication module or main control PCB as specified by Zencar.
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Repair Difficulty
Medium
3/5
Required Part
Wi-Fi / Communication Module
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