The U.S. Fire Administration recommends testing smoke alarms monthly and replacing smoke alarms ten years from the manufacture date, while following the instructions for the particular power type. Carbon monoxide alarms have model-specific replacement timing, so use the label and manual.
Checklist
Tell household members you are testing.
Use the device test control exactly as instructed.
Never remove or disable an alarm to silence a recurring problem.
Record the manufacture date, test, battery change, and replacement date.
If an alarm sounds unexpectedly, treat it as real and follow the device, emergency, and local fire or utility guidance. Do not remain inside trying to diagnose a possible carbon monoxide or fire condition.
Frequently asked questions
Should I follow this interval if my manual says something different?
No. Use the instructions for your exact equipment and applicable local requirements first.
When should I call a professional?
Use qualified help when the work involves a hazard, unsafe access, permits, unfamiliar disassembly, or a scope beyond your skills and equipment.
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