I'm sorry to hear that the motion sensor on your Wagan 8567 Solar Wall Light isn't working. Here are a few troubleshooting steps you can try: Check the Battery: Ensure the solar panel has been exposed to sunlight for sufficient time to charge the battery. Adjust Sensitivity: Some motion sensors have sensitivity settings. Make sure the sensitivity is adjusted correctly. Clean the Sensor: Dirt or debris on the sensor can sometimes interfere with its operation. Clean the sensor area gently. Reposition the Light: Sometimes, the sensor might not detect motion if the light is positioned in a shaded area or if there are obstructions. If these steps don't resolve the issue, you might want to refer to the user manual for more detailed troubleshooting or contact Wagan's customer support for further assistance.