How to Guide

Regular Maintenance

This unit has been designed to be as maintenance-free as possible, but there are a few simple things you

mustdo to keep it working properly:

• Test it at least once a week.

• Clean the Smoke/CO Alarm at least once a month; gently vacuum the outside of the Smoke/CO

Alarm using your household vacuum’s soft brush attachment. A can of clean compressed air (sold at

computer or ofﬁce supply stores) may also be used. Follow manufacturer instructions for use. Test

the Smoke/CO Alarm. Never use water, cleaners or solvents since they may damage the unit.

• If the Smoke/CO Alarm becomes contaminated by excessive dirt, dust and/or grime, and

cannot be cleaned to avoid unwanted alarms, replace the unit immediately.

• Relocate the unit if it sounds frequent unwanted alarms. See “Where This Alarm Should Not Be Installed”

for details.

IMPORTANT: Actual battery service life depends on the Smoke/CO Alarm and the environment

in which it is installed. Regardless of the manufacturer’s suggested battery life, you MUST

replace the Alarm immediately once the unit starts “chirping” (the “low battery warning”).

Alarm End of Life

Permanently Deactivating the Alarm

After 10 years of operation or low battery warning, deactivate the Alarm by following the diagram

below: Score label on dotted line and move switch all the way to the right to DEACTIVATE mode.

NOTE: At end of life or low battery indication (chirp): unit must be put into deactivation mode

to deactivate remaining stored energy in battery. Unit will no longer function once put into this

mode. Unit will resist re-mounting. Once deactivated, replace Alarm immediately.

1. Score label on dotted line

2. Slide switch to the right

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