First, ensure that the power source to the Siemens MOM-2 is stable and correctly connected. Check for any loose connections or damaged wiring. Next, verify that the programming settings are correct and haven’t been inadvertently changed. If everything appears to be in order, try resetting the device by powering it off, waiting a few moments, and then powering it back on. If the issue persists, it may indicate a hardware problem, and you may need to contact Siemens technical support for further assistance or consider replacing the device if it’s under warranty.