Getting N260 Error Even Though I Already Have a C-Wire Connected

[kofsmg]

Hello. I received a free Nest thermostat from my utility company some months back. Hooked it up upstairs, forgot about it - thought everything was fine. Today I went upstairs to grab something and noticed my thermostat screen was giving a "System Error" with the code N260. Looking this up I found that this error is supposedly triggered when there is no C (Common) Wire or Power Connector connected. The strange thing is that I *do* have a C Wire connected to my Nest thermostat. I tried shutting off power to my AC, disconnecting the C Wire and reconnecting it, but the thermostat is still showing an N260 error. When I look at my wiring configuration in my Google Home app, though, it shows a 24v Common wire is connected and my nest appears to be functioning normally via the home app. So why am I getting this error? 

[JMH12]

Just curious if you ever found a solution. We have the same error code as well even with the C wire connected and can’t figure out how to make the error go away. 

[Jco8301]

Same issue here as well.

[EdwardT]

Hi Jco8301,

Thanks for letting us know. I'm sorry to hear that you're also experiencing this issue. To isolate this, could you try reseating the C wire on your Nest Thermostat? Don't forget to turn the breakers off before pulling the wire out to avoid system damage.

Let us know how it goes.

Thanks,

Edward

[EdwardT]

Hi Jco8301,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do. 

Thanks,

Edward

[EdwardT]

Hi Jco8301,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

Thanks,

Edward