Skip to main content

Tools Featured in this Teardown

This teardown is not a repair guide. To repair your First alert smoke and carbon monoxide alarm, use our service manual.

  1. The First Alert Smoke and Carbon Monoxide Alarm. There when you need it, also there when you don't need it and the batteries are low.
    • The First Alert Smoke and Carbon Monoxide Alarm. There when you need it, also there when you don't need it and the batteries are low.

  2. You're going to want to get a flat head screwdriver and pry open the clip on the inside to get to the inner part of the alarm.
    • You're going to want to get a flat head screwdriver and pry open the clip on the inside to get to the inner part of the alarm.

  3. After the last step  you can now see the inside.
    • After the last step you can now see the inside.

  4. Now what you should do is pop a small screwdriver into the rivet hole to unlock the battery holder. Now what you should do is pop a small screwdriver into the rivet hole to unlock the battery holder.
    • Now what you should do is pop a small screwdriver into the rivet hole to unlock the battery holder.

  5. Now with the  the battery back area being popped out you can safely take out the ringer and the mother board of the smoke detector.
    • Now with the the battery back area being popped out you can safely take out the ringer and the mother board of the smoke detector.

    • Electricity works in a smoke detector by detecting smoke via a air filtration tank and when it detects the smoke it send a electric signal to a air horn to beep every 3-5 seconds.

Justin Lyons

Member since: 04/21/2018

142 Reputation

1 Guide authored

0 Comments

Add Comment

View Statistics:

Past 24 Hours: 4

Past 7 Days: 11

Past 30 Days: 78

All Time: 1,009