Model light guide
First Alert Alarm LED Indicators Light Guide
Use this page to compare known light colors, blinking patterns, meanings, and fixes for the First Alert Alarm LED Indicators.
Quick reminder: This is a model-specific guide. Do not use it for a different model unless the manufacturer says the light codes are shared.
Light status table
| Light | Color | Pattern | Meaning | What to do |
|---|---|---|---|---|
| Red or green LED | Red or green | Blinking or steady with no sound | First Alert says a blinking or steady light with no audible alarm sound typically indicates the unit is receiving power. | Check the exact model manual, especially if the unit chirps, sounds, or shows a repeating fault pattern. |
Before replacing parts
Check the exact light name, color, and blinking pattern. Many devices use similar lights for very different states, such as setup mode, firmware updates, charging, connection attempts, paper jams, or failed pairing.
Source note:
This model page is built from the linked source material below and individual detail pages.