⚠️ Status: Obsolete
The Fire-Lite MS-9200-ULDS is a legacy fire alarm panel. Replacement boards are no longer manufactured. A full system upgrade is highly recommended.
Common Micro 1-EV Trouble Codes
- NO ANSWER: An addressable sensor or control module programmed to the signaling line circuit has lost serial communication with the main control board, indicating a faulty device or a physical break in the loop wiring.
- COMM FAULT: The built-in digital alarm communicator transmitter is unable to transmit data to the central monitoring station over the designated analog primary or secondary telephone lines.
- GROUND FAULT: A bare field wire from an initiating device loop or a horn-strobe notification circuit has stripped or shorted against a grounded metal conduit or backbox somewhere in the facility.
- BATTERY FAULT: The secondary backup power supply batteries are completely disconnected, missing, or failing to hold the minimum voltage required to pass the panel’s regular internal load test.
Is your legacy Fire-Lite MS-9200-ULDS panel throwing a persistent “No Answer” fault or a communication line error in your Austin commercial space? Our licensed Firetrol technicians have extensive experience diagnosing these older addressable networks, ensuring your system remains fully operational and compliant with the local fire marshal.