How to Retrieve the Error Code on a Carbon Monoxide Alarm

September 6, 2019

To retrieve the error code on your carbon monoxide alarm, perform the following steps:

Push and hold the Peak Level button. You will see an E and an O followed by a number.
Contact product support at 1-800-880-6788 and provide us the error code, along with the model number, assembly number and date of manufacture from the back of your unit.

If your unit is under warranty, a replacement will be mailed to you.

For more information about your specific alarm, refer to your user’s manual.

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Carbon Monoxide Alarms from Kidde

The leading cause of accidental poisoning deaths in North America, Carbon Monoxide (CO) is odorless, tasteless and invisible – it's a silent killer. The only safe way to know if carbon monoxide is present is to install carbon monoxide detectors (alarms) on every level of your home and in sleeping areas. Kidde has been making CO alarms with electrochemical sensing technology for years.

Smoke + Carbon Monoxide Alarm with Indoor Air Quality Monitor

Smoke + Carbon Monoxide Alarm with smart features

kidde-carbon-monoxide-alarm-battery-digital-display-C3010D-angled

Kidde Sealed Lithium Battery Power Carbon Monoxide Alarm with Digital Display

The Kidde App

Compatible with Google Home and Alexa. Use voice commands to
check alarm status and connection.

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