Why Protect’s green power light is on, but the app says the power is out

If the Nest app reports a different power status than the Nest Protect itself, it's usually because of a delay in updating its status.

For wired Nest Protects

• The Nest app may show that your wired Nest Protect's power is out for up to 24 hours after a brief power outage or fluctuations on the lines.
• The Home app shows your Nest Protect tile when power is out but remains online and uses the backup battery.

If Nest online services are available, your Nest Protect's power status should automatically update within 24 hours. If the status still hasn't updated after a day, or you'd like to update it right away, press the Nest button on your wired Nest Protect once and it connects to the Internet and update its status. You should notice the status change in the Nest app or Home app within a few minutes of pressing the Nest button.

In rare cases, Nest online services may be temporarily unavailable, usually for scheduled maintenance. You can check the status of Nest services by visiting Nest's support site. Your Nest Protect won't be able to update until Nest online services are restored.

If the power status hasn't updated within a few minutes of pressing the Nest button, run a manual test on your Nest Protect. Press the Nest button once, it should play an audio 'Ready, press to test'. Press once more to initiate a manual test. This confirms the unit is working properly, and cause it to update its status in the Nest app or Home app. Learn about Safety Checkup.