My nest wired doorbell which is now about 3.5 years old just disconnected one day. all my other nest cameras and thermostats are working just fine. I tried adjusting wifi and tried even re-installing but keep getting error NC021. i have read other topics on this but nothing has worked.
Thanks for posting here in the Community and for sharing with us the error code that you're getting. NC021 means that your Nest Camera couldn’t connect to your phone through Bluetooth. You’ll need to make sure that Bluetooth is working and is enabled on your device. Follow this link for the troubleshooting steps needed for this issue. Select the NC errors drop down and click the NC021 error code. Let me know how it goes.
Thanks for taking some steps beforehand — these are of great help! Let’s sort this out — a few questions: what’s the voltage of your transformer? What’s the status light of the doorbell? How’s the temperature of the doorbell (warm, hot, cold or normal)? What country are you located in? Has there been any recent power outage in your area? Also, has it been exposed to direct sunlight?
Here are some troubleshooting steps you can also try:
Important: When the doorbell shows a blue pulsing light when connected to a computer, it means it’s working. They may be issues on your wires or transformer. I recommend scheduling a visit with our partnered Nest Pro.
I appreciate the help, Emerson.
Just checking in to make sure that you've seen our responses. Please let me know if you have other questions or concerns as I will be locking this in 24 hours if I won't hear back from you again. Feel free to start a new thread and we'll be happy to help.
I appreciate the help, Emerson and JT.
Got it — thanks for checking that for us. We’d like to further investigate this — could you fill out this form and let us know once you’re done?
Thanks for chiming in, Archie.