Troubleshooting

This section lists common issues you may encounter while using the SLWF-09, along with their possible causes and solutions. 

 

 6.1 Power Issues 

 

 

 

 

 

 Problem 

 Possible Cause 

 Solution 

 

 

 

 

 No power LED when connected 

 

 - Incorrect power supply voltage - Loose or reversed wiring - Faulty power adapter 

 - Incorrect WLED relay settings 

 

 

 - Verify voltage matches LED strip (5V, 12V) - Check all power connections - Try a different power source 

 - "Relay GPIO" setting should be GPIO33 

 

 

 

 Device powers on but LEDs do not light 

 

 - Incorrect LED wiring - Wrong LED type in WLED - Data wire not connected 

 - LED relay is not configured 

 

 

 - Verify data and ground connections - Match LED type in WLED settings - Check continuity of data wire 

 - Configure LED relay in WLED to GPIO33 

 

 

 

 

 

 

 

 6.2 Network Connection Problems 

 

 

 

 

 

 Problem 

 Possible Cause 

 Solution 

 

 

 

 

 Cannot find WLED Wi-Fi AP on first boot 

 - Device already connected to a previous network 

 - Reset Wi-Fi settings by holding BOOT button for 5+ seconds until LED blinks rapidly 

 

 

 Cannot connect to home Wi-Fi 

 - Wrong SSID/password - Unsupported 5 GHz Wi-Fi 

 - Double-check credentials - Ensure router has 2.4 GHz enabled 

 

 

 Ethernet not working (with add-on) 

 - Module not fully inserted - No DHCP from router 

 - Reseat Ethernet module - Try a different cable/port - Check if IP is assigned in router 

 

 

 

 

 

 

 6.3 LED Output Issues 

 

 

 

 

 

 Problem 

 Possible Cause 

 Solution 

 

 

 

 

 LEDs flicker or show wrong colors 

 - Voltage drop on long runs - Poor grounding - Incorrect LED voltage 

 - Use power injection - Ensure common ground - Match LED strip voltage to power supply 

 

 

 Only first few LEDs light up 

 - Power not sufficient - WLED LED count too low 

 - Increase power supply capacity - Set correct LED count in WLED 

 

 

 

 

 

 

 6.4 Add-on Module Problems 

 

 

 

 

 

 Problem 

 Possible Cause 

 Solution 

 

 

 

 

 PoE not powering device 

 - Non-PoE switch/injector - Incorrect PoE standard 

 - Use IEEE 802.3af compliant PoE source 

 

 

 Microphone not detected 

 - Module not inserted fully - Sound reactive mode not enabled in WLED 

 - Reinsert module correctly - Enable "Sound Reactive" in WLED settings 

 

 

 

 

 

 

 6.5 Firmware & Reset 

 

 

 

 

 

 Problem 

 Possible Cause 

 Solution 

 

 

 

 

 WLED interface not loading 

 - Firmware corrupted - IP conflict 

 - Reflash firmware via Web Flasher 

 

 

 Device unresponsive after update 

 - Incorrect firmware build 

 - Flash with correct SLWF-09 firmware using USB-C and web flasher 

 

 

 

 

 

 

 6.6 Support 

 If problems persist: 

 

 

 Visit the documentation at https://smlight.tech/support/manuals/public/books/slwf-09 

 

 

 Use the Web Flasher to reinstall firmware. 

 

 

 Contact SMLIGHT Support with your purchase details and a description of the issue.