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Why does my FA6611-R smoke alarm go off randomly?

General

23 April 2026

False alarms are usually caused by steam, cooking fumes, dust, or insects entering the sensor chamber. The FA6611-R has a hush function that silences nuisance alarms for a few minutes. If false alarms happen often, try vacuuming around the sensor and repositioning the alarm away from kitchens and bathrooms. See our guide on top 10 reasons your smoke alarm goes off randomly.

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