Our technician here at firealarm.com suggests starting with a few basic troubleshooting steps. Firstly, ensure that the power source is connected securely and functioning correctly. Check for any visible signs of damage to the wiring or components. Additionally, verify that all connections are tight and not corroded. If the issue persists, it might be beneficial to consult the user manual for specific troubleshooting guidance or contact Kidde-Fenwal’s customer support for further assistance.