
✅ Status: Active / In Stock
Good News: We carry replacement boards, power supplies, and detectors for the ES-50X.
Common Fire-Lite ES-50X Trouble Codes
- COMM FAULT: The panel cannot reach the monitoring station. Often caused by a disconnected phone line or network cable.
- GROUND FAULT: A wire is touching metal conduit. Use the panel’s “Diagnostics” menu to locate the specific circuit.
- SLC OPEN: A device is missing or a wire is cut. The panel will display the exact address (e.g., “L1D42”) of the missing device.
- BATTERY: Backup batteries have failed the automatic load test. Replace with two 12V 7AH or 12AH batteries.

The ES-50X is Fire-Lite’s flagship panel. If you are seeing ‘Comm Fault’ errors, we can often reprogram the built-in IP communicator remotely to save you a service call. We stock the main board and replacement addressable detectors in Austin.
