False CO Sensor Failure

[jhlichty]

 

Every night at 8PM I receive a CO sensor failure notice. I suspect this is a false reading as the CO sensor is found to be working by 12AM. See attached photo. The device is less than three years old so the sensor should work fine. Any thoughts on what is wrong and how to fix it?

[David_K]

Did you try cleaning your Nest Protect by following these steps?

Clean your Nest products - Google Nest Help

[zoeuvre]

Hi jhlichty, 

Thanks for reaching out to us, and I'm sorry to hear about what happened. Let's sort this out. 

How's it going with your Nest Protect? Were you able to read the information that davidking has shared? Also a few questions: 

• Are there any nearby sources of steam, smoke, or any other visible vapor?
• Any previous events with Nest Protect such as, false or legitimate alarms, chirps, or other unexpected behavior?
• Does the reported sensor failure correspond with any recent construction, cleaning, or other activities in the house that could have introduced large amounts of dust or foreign particles into the environment?
• Is the Nest Protect near any air vents, fans, windows, or other sources of air flow that could bring dust or foreign particles into the detection chamber?
• Where is the Nest Protect installed (room, ceiling, or wall)?
• When was the last audio test?

I'll look forward to your response. 

I appreciate your help, @David_K.

Best,

Zoe

[jhlichty]

The problem was resolved when I uninstalled the unit and then reinstalled it. Oldest trick in the technology book. 

[zoeuvre]

Hi there,

I’m glad that everything has been sorted out. 

In the meantime, I'll go ahead and lock this thread within 24 hours. If you run into any more questions in the future, please feel free to create a new thread.

All the best,

Zoe