Nest protect yellow light flashing only at night in dark when after turning off light.

[Stryker291982]

Hello I bought a house full of nest protects back in 2020 and I have noticed lately at night in one of the bedrooms when you turn off the lights in the room the detector will pulse or flash the yellow ring for about 5 seconds and then go away. I checked the app and each time this protect does this the app shows it as doing a sensor check maybe? The app shows no issues and it shows the battery levels as being good, this is also a hardwire model.

What could be causing this protect to flash the yellow light, only at night, after turning off the room light going into a dark room?

[David_K]

This is part of the nightly promise feature. When it flashes yellow, push the button to hear the nature of the issue.

Learn about Nightly Promise - Google Nest Help

[Stryker291982]

Alright so following this I pushed the button and it directed me to another device that was showing online and not in any alarm status. I pressed the button and is just said ready. I ran a system test on the entire house through the app and it came back with no errors. Its weird how the only detector that was giving the yellow ring was in the bedroom, not even the device it said was the issue was stating there was an issue.

[zoeuvre]

Hi folks,

@Stryker291982, I'm happy to hear that everything has been sorted out. Also, if the batteries are low, Nest Protect provides a lot of advanced notices. You may receive a notification in the Nest app, and Nightly Promise glows yellow. When batteries become very low, Nest Protect also speaks automatically and states that it's time to change the batteries. If no power is detected to a line powered Nest Protect, you will receive a notification in the Nest app. Learn more about this by checking this article.

Since we can now consider this one complete, I will be locking this in 24 hours if we don't hear back from you again. Feel free to start a new thread, and we'll be happy to help.

I appreciate your help, @David_K. 

All the best,

Zoe

[Stryker291982]

@zoeuvre, batteries were good in this situation, why was the app not detecting an error?

Thats what I am trying to understand a device without an issue was saying another had an issue but the reported one with the supposed issue was not even saying it had an issue. App reported all was good and system self test stated no issues. So not sure if this was false reporting issue or what the real issue was here. Would all the devices report in there was an issue with one or another or at least the app installed of saying all is good?