Kidde P4010ACS-W User Manual page 23

chirping
When chirping begins during the next Day cycle, you can temporarily
silence End of Unit Life or Network Error chirps by pressing the
Test/Hush button. Low Battery chirps cannot be silenced. If a valid
Night / Day cycle has not been established because the unit is located
in either a constantly dark or lighted location, the chirps mentioned above will not be delayed at night. Moving the unit
to a different location might allow the unit to determine a valid Night / Day cycle.
WArnIng: replAce UnIt AS Soon AS poSSIble WHen In end oF UnIt lIFe or loW bAttery Mode.
poSSIble cHIrpIng reASonS
End of Unit Life: will be delayed at night
Network Error: will be delayed at night
Low battery: will be delayed at night
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