Repair of ROOM 112 LIVING ROOM HORN SHOWING SHORT AT FACP I WIRED THROUGH THE DEVICE AND THE SHORT CLEARED. UPON PUTTING THE DEVICE BACK TOGETHER AND ON THE WALL, THE PANEL STAYED CLEAR. THERES NO SHORT ANYMORE. CUSTOMER WOULD LIKE TO ORDER (1) SYSTEM SENSOR HW-LF HORN FOR BACKUP IF THIS HAPPENS AGAIN EH