Kia EV charger displays E18 and the unit cannot connect to Wi-Fi or mobile app; charging may still work in basic mode.

Safety first: Network issues do not usually affect electrical safety, but always isolate power before opening the charger.

• 1. Reboot charger and router: Turn off the charger at the breaker and reboot your Wi-Fi router. Restore power and attempt reconnection via the app.
• 2. Check signal strength: Ensure the charger is within good Wi-Fi range. If signal is weak, consider relocating the router or adding a Wi-Fi extender.
• 3. Forget and re-add device: In the Kia app, remove the charger and then add it again following the pairing instructions.
• 4. Firmware update (if possible): If the charger can still access updates via another method, apply the latest firmware to resolve known network bugs.
• 5. Internal antenna/module check (technician): With power off, a technician can verify that the network module and antenna connections are secure. If the module is defective, replace it with a Kia-approved network board.