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Hush or silence mode · First Alert · smoke

First Alert: Silent, red LED three flashes and a pause, escape light on

Silence mode: after the Test/Silence button is pressed during an unwanted alarm, the horn is quiet for up to 8 minutes while the red LED repeats three flashes and a pause.

What you see
Three red flashes
What you hear
Silent

If it is sounding a full alarm instead: the maker’s emergency instruction

Smoke alarm

First Alert (SM210L manual): if the alarm sounds, get everyone out of the house immediately — do not stop to dress or collect anything. Feel doors with the back of your hand and do not open a hot one; cover your nose and mouth with a damp cloth; meet at your planned place outside and count heads; call the fire department from outside, giving your address and then your name; never go back inside a burning building.

From User’s Manual — Smoke Alarm, 10-Year Sealed Battery with Escape Light.

The First Alert alarm on these pages senses smoke only. For a carbon monoxide alarm, follow its own maker’s instruction.

What First Alert says to do about this signal

  1. Use Silence only when you know the smoke is not from a fire; First Alert warns that heavy smoke can override it or make it re-alarm quickly.
  2. If the alarm will not silence and there is no heavy smoke, or it stays in silence mode all the time, First Alert says to replace it immediately.

From User’s Manual — Smoke Alarm, 10-Year Sealed Battery with Escape Light. If your alarm’s pattern is not exactly this, check the manual for your model: First Alert models do not all use the same signals.

Other First Alert signals

Hush or silence mode on other brands

The same state sounds and looks different on each make — which is why a chirp pattern cannot be read without the brand.

Sources

Every line on this page comes from First Alert’s own documents, read on the date shown. Nothing is taken from third-party code sites or other makes.