First, ensure that the power supply to the Gentex GES3-24WR is stable and within the required voltage range. Check the wiring connections to ensure they are secure and properly connected. If the power supply and wiring connections are all confirmed to be in good condition, try resetting the device by power cycling it. If the issue persists, it may be a fault with the strobe itself, and I would recommend contacting Gentex technical support for further assistance or considering replacement if the device is under warranty.