Fujitsu Minisplit Wifi Adaptor Error Codes
Mar 23, 2025
32
Wi-Fi Adapter Fault Code Table for Chatbot Integration
| Error Code | Error Description | Wireless LAN Indicator Lamp | Troubleshooting Steps |
|---|---|---|---|
| E: 18 | External communication error between indoor unit and Wi-Fi adapter | Flashing slowly | Check the communication cable connections; reset the system. |
| No Code | Network communication error between Wi-Fi router and adapter | Flashing slowly | Verify router settings; ensure proper Wi-Fi signal strength. |
| E: 18 | Communication error | Flashing slowly | Confirm all connections are secure; reset the system. |
| E: 18 | Wi-Fi adapter non-energized | Off | Ensure power supply is active; check wiring connections. |
Indicator Lamp Pattern Explanation:
- Flashing slowly: 7 seconds ON / 2 seconds OFF
