Start with power cycling the Entire System by removing a lead from the backup battery, and unplugging the power supply from the outlet in the wall. Leave it powered down for 20 seconds. RE-apply power. Once re-applied, do not touch Keypad or Power for 10-20 minutes so Startup and the required Syncing between Panel and the ADC-SEM300-VT-VZ-M can be completed. If this does not clear the issue, there may be other troubles between the Panel and ADC-SEM300-VT-VZ-M, and further troubleshooting with a GeoArm Certified Technician may be required. Please see picture below for a Visual Guide on Power Cycling your Panel.&nbsp;

<img src="https://cdn.livechat-static.com/api/file/kb/file/14150592/8352ae1d83-3ec58ddbbb0ea66bc8c8.png" alt="undefined" style="float:none;height: undefined;width: undefined"/>
If Further assistance is required, please schedule a time to speak with a GeoArm Certified Technician <a href="https://www.geoarm.com/remote-tech-support.html" target="_blank">here</a>.

Start with power cycling the Entire System by removing a lead from the backup battery, and unplugging the power supply from the outlet in the wall. Leave it powered down for 20 seconds. RE-apply power. Once re-applied, do not touch Keypad or Power for 10-20 minutes so Startup and the required Syncing between Panel and the ADC-SEM300-VT-VZ-M can be completed. If this does not clear the issue, there may be other troubles between the Panel and ADC-SEM300-VT-VZ-M, and further troubleshooting with a GeoArm Certified Technician may be required. Please see picture below for a Visual Guide on Power Cycling your Panel. 

 
If Further assistance is required, please schedule a time to speak with a GeoArm Certified Technician here.

ADC-SEM300-VT-VZ-M Communication Failures