Find more information about your First Alert or BRK product, including manuals, tutorials, and more.

Apr 4, 2014 · I had a smoke detector that kept chirping. Thinking it was a battery problem, I replaced the battery even though the battery that was in it tested out okay. Now, this is a smoke detector located …

Find more information about your First Alert or BRK product, including manuals, tutorials, and more.

However the First Alert 9120B is a smoke alarm model. If you have replaced the battery in your First Alert 9120B smoke alarm and it continues to beep, here are some steps you can take to troubleshoot …

Apr 16, 2025 · Get the First Alert SC9120B User Manual for comprehensive setup, troubleshooting, and maintenance tips. Download now and master your device!

If problems are identified during this inspection have the equipment serviced immediately. Note any combustion equipment not inspected by the technician, and consult the manufacturers’ instructions, …

To test the functionality of your First Alert SC9120B, locate the test button on the front of the unit. Press and hold the test button for a few seconds until the alarm sounds.

May 6, 2012 · View and Download First Alert SC9120B user manual online. Smoke & Carbon Monoxide Alarm. SC9120B carbon monoxide alarm pdf manual download. Also for: 9120, 9120b.

Jun 22, 2025 · Get the First Alert SC9120B manual for smoke & carbon monoxide alarm. Download PDF, troubleshooting, and installation guide.

Apr 20, 2024 · Unlock the secrets of your First Alert SC9120B smoke alarm! Download the complete manual, troubleshoot issues, and ensure your family's safety. Easy-to-follow instructions and …