Smoke Alarms
Introducing Nest Protect
Get started
Explore features and settings
Safety and certifications
- Learn about carbon monoxide
- Carbon monoxide levels in your home
- What to do if Nest Protect detects smoke in your home
- How to recycle your old smoke + CO alarm
- Learn about the different types of fires
- Symptoms of carbon monoxide poisoning
- What to do if carbon monoxide is detected
- Emergency evacuation plan
- Learn about Emergency Shutoff
- Why carbon monoxide (CO) alarms don't need to be installed near the floor
Fix a problem
- Error codes
- Offline and Wi-Fi issues
- Can’t connect Nest Protect to the app or Wi-Fi
- Prevent false alarms
- When to replace your Nest Protect
- Why Protect’s green power light is on, but the app says the power is out
- What to do if Protect’s speaker or horn aren't verified by Sound Check or Safety Checkup
- Reset Nest Protect and erase all settings
- Nest Protect software update history
- Troubleshoot when nothing happens after removing 1st gen Nest Protect's battery tab
- Troubleshoot wired Nest Protect power problems
- Troubleshoot your Home Report
- Troubleshoot phone location
- Troubleshoot a Works with Nest connection
- Painting Nest products
- Troubleshoot Wi-Fi and connection issues for Nest products
- Troubleshoot QR code scanning with your phone’s camera
- Find your Nest product's MAC address
- Change email language with Nest app
- Change your Home Report language
- Don’t share your account email and password
- Clean your Nest products