Kidde 900-0259 User Manual page 16

Battery Installation/Replacement
3. Reinstall the new batteries. Be careful to seat the red
battery warning ags in the recess of the battery well.
Also, note the polarity illustration in the bottom of the
battery compartment. If applicable, the unit will chirp and
display for approximately one minute and return to normal
operation.
4. Gently close the cover. The cover of your CO alarm will
NOT close if all three AA batteries are not properly
installed.
NOTE: Ensure that you observe the correct battery polarities
required during battery installation. Incorrect battery inser-
tion will make your CO alarm inoperable.
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