One of my window/door sensors was damaged when I recieved it. When I set it up, I was unable to sync it to the gateway. SInce it was unable to connect, it was listed as a zwave device. I received a replacement sensor and was able to synced it without any problems but I can't delete the erronous zwave device. Is there a way to delete this device so it no longer shows under my device list? I know I can list connected devices but I can't find any information on how to delete devices that are listed but not connected.