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Good News: We carry replacement parts, expansion modules, and accessories for the Napco Gemini Series C.
Common Napco Gemini Series C Trouble Codes
- SYS TBL: The main panel is reporting a general system trouble that requires checking the specific code on the keypad display.
- FIRE TBL: A specific fire zone or initiating device circuit has an open wire or missing end of line resistor.
- TELCO FAIL: The built in digital alarm communicator transmitter failed to connect with the central monitoring station over the phone lines.
- LOW BATTERY: The standby backup batteries have dropped below the required operating voltage or failed their automatic load test.

The Napco Gemini Series C is a versatile commercial panel, but persistent communication failures or zone troubles need immediate attention to maintain building compliance. If your system keypad is beeping constantly, our technicians can evaluate your wiring and provide a fast repair for your Austin facility.
