A loss of RF (radio frequency) means that the device has lost communication with the main control panel. If your device has a low battery, replacing the battery should correct this.
If you have moved the device or accidentally blocked its communication path, try moving it back or clearing the path. Then clear the notification from your keypad.
Still having trouble? Call 1.800.PROTECT (1.800.776.8328) and we will be happy to help you.
