CHAPTER 7: Troubleshooting Guide
DANGER!
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the CO alarm is installed BEFORE removing it from the mounting bracket or checking any electrical connections! Failure to turn off the power first may result in serious electrical shock, injury or death.
The following guide can help you identify a potential problem with the installation or operation of your CO alarm. It is not meant to be an
If your CO alarm does this... | It means... | You should... |
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Red light is OFF. | Unit may not be | Check the AC power supply. Make sure the power |
Unit will not alarm when you | receiving any power. | connector is securely attached to the alarm. |
press the Test/Silence button. |
| Make sure a fresh 9V battery is installed to |
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| power the battery |
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Red light flashes once a minute | Alarm is not receiving | Unit is operating on DC battery |
(horn is silent). | AC power. | Check the AC power supply. |
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Once a minute, the red light | Low battery warning. | Replace the battery in the battery |
flashes and the horn “chirps”. |
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Once a minute, the alarm | Unit malfunction. Unit | Units under warranty should be returned to |
sounds 3 quick “chirps”, and | needs to be replaced. | manufacturer for replacement. See Chapter 8 |
the red light flashes quickly |
| “Limited Warranty” for details. |
three times. |
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CO alarm goes back into alarm | CO levels are | Refer to Chapter 3 “If Your CO Alarm Sounds” for |
4 minutes after you press the | still potentially | details on how to respond to an alarm. If anyone is |
Test/Silence button. | dangerous. | feeling ill, EVACUATE your home immediately and |
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| call 911. |
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CO alarm sounds frequently | The CO alarm may be | Relocate your alarm. If frequent alarms continue, |
even though no high levels of | improperly located. | have home rechecked for potential CO problems. |
CO are revealed in an | Refer to “Where to | You may be experiencing an intermittent CO |
investigation. | Install Your CO Alarm.” | problem. |
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If you have questions you cannot answer by reading the manual, call Consumer Affairs at
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