Display Readings
The following tables contain vital information about the vari- ous readings you may see on your display. We suggest you keep this User’s Guide handy for reference.
Your new Kidde Carbon Monoxide Alarm is a sophisticated electronic device – yet very simple to understand. Basically, the unit will display a “0” if it does not sense CO and if you have a good 9 volt backup battery installed.
If your alarm senses carbon monoxide, it will display a read- ing in parts per million of CO.
If the backup battery is low or missing, or if the unit malfunc- tions it will display other readings (and alarm differently) to alert you that something is wrong with the alarm.
Please familiarize yourself and other family members to the difference between a CO reading and a reading signifying a problem with the alarm itself.
Start-up and Normal Operation Readings
Display Shows | Alarm | Unit | Recommended |
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Sound | Status | Action |
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| Brief “888” | One short | Self checking | None - unit should |
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| “chirp” | when AC | return to zero within |
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| powered | one minute |
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| “Lb” flashes | One short | Install or replace |
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| alternately with | “chirp” | reset phase | 9 volt battery |
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| “0” | every 15 | and low or | refer to page 2 |
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| seconds | missing bat- | and page 5 |
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| tery |
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| Steady “0” and | None | Normal AC oper- | None |
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| flashing dot |
| ation ( sensing no |
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| CO and battery is |
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| good) |
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Steady display | Quick repeating | |
of high number | beep pattern of | |
(in the hundreds | 4 or 5 beeps | |
of ppm) and | per second | |
flashing dot | ||
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High level of CO detected
Refer to page
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If at any time the alarm does not perform as described, have it replaced immediately.
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