Maintenance - Kidde 900-0215 User Manual

7. Maintenance

NOTE: This unit is sealed. The cover is not removable.
Due to the loudness of the alarm, we suggest that you place your
fingers over the sounder opening while testing your alarm.
CAUTION: Continuous exposure to the high sound level of this
alarm over an extended period of time may cause hearing loss.
Testing
To test the CO alarm, press and release the Test/Reset button, you will
hear 4 quick beeps – followed by 5 seconds of silence – followed by 4
quick beeps. Notice the red Alarm LED flashes when the unit alarms. The
alarm will then return to monitoring for carbon monoxide.
NOTE: You do not need to press the Test button to take a CO
reading.
Battery Replacement
WARNING: If at any time you test the alarm and it does not
perform as described, have it replaced immediately.
NOTE: This CO alarm is not battery operated. However, this alarm is
equipped with 9 volt battery backup – the 9 volt battery is to supply
short term back-up during a power outage.
Remove the screw, if it has been used, that is holding the battery door
located on the bottom of the unit. Slide the battery door in the direction
of the arrows to release it. Remove the battery and replace it with one
of the following approved replacement batteries:
• Energizer 522
• Ultralife lithium U9VL-J
Replace the battery door and re-install the screw if it is used.
Any of these batteries can be purchased where you bought the alarm or
at your local hardware store.
IMPORTANT: Constant exposures to high or low humidity may reduce
battery life. A good safety measure is to replace the battery at least once
a year, or at the same time as you change your clocks for daylight saving
time.
After installing or changing the battery, reinstall your alarm. Test your
alarm by using the Test/Reset button and check that the green Operate
LED is on.
• Duracell MN1604, MX1604