My Elk M1G has been installed and working great for 10+ years. I recently added the NextAlarm monitoring and followed the installation instructions. Everything seems to be working fine, but there is a relay clicking inside the elk a few times a minute. Sometimes two or three clicks in a couple of second's time, and sometimes it's more like one per minute. Is that normal? It's a good thing I have my Elk in a closet with other computers and fans which pretty much drowns it out, but I'd still like to make it stop if possible.