Before troubleshooting, if you have a computer with the proper software, immediately upload the program in the Quick Start fire alarm panel into your computer. I'm not sure, but EST might not be supporting this panel anymore. By uploading the program to your computer, you can save the information about the fire alarm system in case something happens with the Quick Start panel.
Unconfig Alarm means that something, like a pull station, a flow switch, or a detector, is in alarm, but has not been configured, or programmed, into the panel. The best the panel can say is that something is in alarm, but the panel can't say anything more about it.
There is always the possibility that the panel is starting to fail. If that is the case, uploading the panel can help in the replacement process for a new panel.
Another possibility is that someone has added a device to the Signaling Line Circuit (SLC) a while ago, and never added it to the panel.
A slim possibility is one of the devices on the circuit is failing, especially if it has gotten wet, and is now sending out false addresses.
At this point, you probably want to contact the EST technical support team to get more details. When you do, make sure you know exactly which lights are turned on, including if the green light is on, all yellow lights, and all red lights on the panel. These lights show the status of the panel.
Also, scroll through all the alarms, troubles, supervisiories, and monitors. The technical support team will want to know exactly what the panel is showing, including all numbers and letters on the panel. Remember, the letters and numbers are important enough to be shown on the panel, make sure you can tell technical support what the numbers and letters are.