Charger shows E14; Wi-Fi or app connection may fail; charging may still work but with limited smart features.

Safety first: Most communication faults are low-voltage, but still turn OFF power before opening the charger.

• 1. Power cycle: Turn off the breaker for 2–3 minutes, then restore power. Many communication modules recover after a full power reset.
• 2. Check signal environment: Ensure the charger is within range of the Wi-Fi router and not shielded by metal enclosures. Reduce interference by moving routers or other RF devices if possible.
• 3. Internal connector check (qualified): With power OFF, open the charger and locate the Wi-Fi/communication module (often a small daughterboard or plug-in module). Reseat its connector and ensure any antenna leads are firmly attached.
• 4. App re-pairing: Use the Besenergy app to remove the charger and re-add it, following the pairing instructions. This can clear corrupted pairing data.
• 5. Module replacement: If E14 persists and the module shows no activity (no LEDs, no broadcast), replace the communication module with the correct Besenergy part.

When to call a professional: For module replacement or firmware issues, contact Besenergy support or a qualified technician.