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6. Battery installation/replacement
Two beeps with corresponding FAULT indicator (yellow LED) flashing twice every 40
seconds indicates that the battery level is low, you must replace with the battery specified,
please see “8. Specifications“ To install or replace the battery in unit, please perform the
following steps:
6.1 Take down the unit from screw heads of the wall.
6.2 Open battery compartment.
6.3 Remove the old battery and replace by new battery.
6.4 Check the alarm, the green LED should flash once a second in the first 60 seconds, if not,
remove the battery and put them in again.
6.5 Close battery compartment.
6.6 Hook the alarm body over the screw heads onto keyholes in back of the unit.
6.7 Test alarm using the TEST/SILENCE button, if the testing alarm is ok, means the product can
work normally.
WARNING!
- Use only the battery specified. Use of different battery may have a detrimental effect on
the CO alarm. A good safety measure is to replace the battery at least once a year.
NOTE:
- Reinstall immediately after cleaning and then test unit using the TEST/SILENCE button!
