Altronix AL-1042-UL-ADA Installation Manual & Troubleshooting Guide

Altronix AL-1042-UL-ADA 10 Amp NAC Power Extender inside red enclosure
The Altronix AL-1042-UL-ADA 10A NAC Power Extender.

✅ Status: Active / In Stock

We carry replacement main boards, backup batteries, and repair parts for the AL-1042-UL-ADA.

Common Altronix AL-1042-UL-ADA Trouble Codes

  • AC FAIL: The unit has lost primary 120VAC power and is running on backup batteries.
  • BAT FAIL: The backup batteries are missing, depleted, or failed their automatic load test.
  • NAC FAULT: A Notification Appliance Circuit (horn/strobe loop) has an open or short circuit.
  • GROUND FAULT: A field wire on one of the output circuits is touching the metal conduit or enclosure.
Front cover of the Altronix AL-1042-UL-ADA Installation Guide
Official Altronix AL-1042-UL-ADA Installation Manual.

If your Altronix AL-1042-UL-ADA is showing a persistent battery or NAC fault, we can diagnose the circuit and replace the main board. Austin Fire Inspections carries active replacement parts to get your building’s horns and strobes back online and fully compliant fast.