Operation
LED Indicators
This smoke alarm is equipped with red and green LED indicators. The red LED is located under the test button and has several modes of operation. The green LED is located under the Hush® button and indicates the presence of AC power.
Standby Condition | The red LED will flash every |
| seconds to indicate that the smoke |
| alarm is operating properly. The green |
| LED will be lit, indicating the presence |
| of AC power. |
Alarm Condition | When the alarm senses particles of |
| combustion and goes into alarm, the |
| red LED will flash rapidly (once every |
| two seconds). The rapid flashing LED |
| and temporal alarm will continue |
| until the air is cleared. |
Hush Condition | The red LED will flash every 2 seconds |
| as long as the alarm is in Hush® mode. |
Low Battery Condition The red LED flash will be accompanied by an audible chirp. Replace the battery when this condition occurs.
Alarm Memory | This smoke alarm is equipped with |
| an alarm memory which provides a |
| visual indication when an alarm has |
| been activated. A lit red LED |
| indicates the memory condition. The |
| memory will remain activated until it |
| is reset by pushing the test button. |
Smoke Sensing Chamber Operation
The alarm will “chirp” if any of the components in the smoke sensing chamber fail. This chirp will occur between the flashes of the red LED indicator light. If the “chirp” occurs at the same time as the red LED flash, see Battery Replacement section for more information.
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