AC is off with Thermostat OFFLINE with black screen and red blinking right on top

[ashsaksena]

AC system is off with Nest Learning 3rd Gen thermostat OFFLINE with black screen and red blinking right on top. Is it an AC issue , thermostat issue or both? I replaced filter and tried to physically turn ON the AC in the basement with the switch but it makes a click sound and doesn't turn AC on.  I have taken the thermostat panel off and charging it will USB cable from a wall outlet. I have also opened a claim with my home warranty company ( Choice Home Warranty). I dont know what and where is the real problem: AC or thermostat? 

[Jenelyn_O]

Hi ashsaksena,

Thanks for reaching out. A few questions: do you see any messages or code on your thermostat? How long did you charge your thermostat?

Please check your thermostat Power readout: 

1. Go to your thermostat Quick View menu.
2. Go to Settings.
3. Turn the ring and find the Technical Info.
4. Select Power.

Best,

Jenelyn

[Jenelyn_O]

Hi there,

Checking if you still need help. Please let me know, as I'll be willing to assist you further. 

Thanks,

Jenelyn

[ashsaksena · Accepted solution]

Hi Jenelyn,

Thanks for responding. My AC is back on. It was the nest learning thermostat issue. It discharged and drained out. Charging it eith USB also didn't help recharge ir. I bought a new nest thermostat and installed/configured it. The AC turned back on thereafter. There was no problem with AC. Alls well now. Thanks, Ash.

[Jenelyn_O]

Hi Ash,

Thanks for the update! I'm glad to hear that your AC is working now. Please feel free to create a new thread if you have any questions or concerns, as we'll be willing to assist you from there. Otherwise, I'll be locking this thread after 24 hours.

Cheers,

Jenelyn