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Woman tests her smoke alarm while on a ladder.

How to Test a Smoke Alarm

Test a smoke alarm by using the test button. This will will ensure an accurate and complete test of your alarm(s).

Woman tests her smoke alarm while on a ladder.

Why Doesn’t My Alarm Sound When I Test It?

Some need to hold for five seconds and others require a single push. Still no sound? You should replace it every 10 years. Check the date code on the back of the unit.

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