Power Connector Troubleshooting issue

[Cap2x84]

I’d had this nest thermostat for a while now and it would say no power from time to time. I finally got a power connector and installed it. I have 4 wires on my thermostat R, Y, G, W. 
in my air handler there is R G T C C C. 
the unit is working. But I’m getting the n262 error

[Cap2x84]

[Markjosephp]

Hello Cap2x84,

Thank you for taking the time to let us know about your inquiry. I'd be happy to take a look at this for you.

Please check your Nest Thermostat's software version in its settings and make sure that it's up-to-date. Also, restart it by going to its settings and refreshing to make sure it's connected to the internet.

Let me know how it goes.

Best,
Mark

[Markjosephp]

Hey there,

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Thanks,

Mark

[Markjosephp]

Hi Cap2x84,

I'm checking in to make sure that you've seen my response. Please let us know if you have any additional questions or concerns before we close this thread in 24 hours. 

Regards,

Mark