At ~ 7:44 PM, Westmoreland 911 dispatched Station 20 (Murrysville VFC) for an Automatic Fire Alarm (AFA) for a home on Benden Circle. Station 20 responded with Engine 20, with Captain 20 going directly to the scene. Westmoreland 911 also dispatched the following stations to support Station 20: Station 78 (Sardis VFC), Station 64 (White Valley VFC), and Station 22 (Station 22). Captain 20 was first on scene, established command, and observed no smoke or fire coming from the structure. Engines 20 and 78 were arrived at the scene, and upon investigation by the crews found that the AFA System had malfunctioned. After informing the home owner, Command 20 returned all responding units to service and station.