First, let’s check the wiring connections between the panel and the devices. Ensure all connections are secure and there are no loose wires. Next, verify the programming settings in the panel to ensure they match the devices’ specifications. If the issue persists, try power cycling the panel by turning it off, waiting a few minutes, and then turning it back on. If none of these steps resolve the issue, it may indicate a faulty panel or device, and further diagnosis by a certified technician may be necessary.