Low CO Detector Battery
The CO detector test alert is not functioning.
Less commonFix nowSafetyCarbon monoxide detectors
Why it matters
An unpowered CO detector will not alert you if there is an unusual buildup of carbon monoxide in the home.
How common is it?
Didn't come up in the homes HomeCloud evaluated Sep 2025 to Oct 2026, but it's on our list of safety findings.
Counted by the finding's name on HomeCloud reports, so the true number can be a little higher.
How soon to fix it
HomeCloud reports list this as a fix-now item.
More safety resources
Where to put smoke and carbon monoxide detectorsWhich rooms and floors need smoke and CO alarms, spots to avoid, battery vs hardwired vs combination alarms, and when to replace them.Radon test results explainedWhat pCi/L means, short vs long-term tests, the 2.0 and 4.0 levels, why results vary, and what to do with a high result when buying a home.