Does nest thermostat work when power is out

[Tca]

I have a power outage and plugged in my heater to a generator. The heater will not work.

[sicsacol]

Hi @Tca,

Thanks for reaching out. I'm sorry to hear you're going through this with your Nest thermostat. Let's work together to get this fixed. To help me with that, I have a few questions:

• What type of Nest thermostat do you have?
• What type of HVAC system do you have?
• What type of furnace do you have? (gas, electric, etc.)
• Does the thermostat screen indicate that it’s actively calling for heating?
• When did the heating last work?
• Are there any error messages or codes?
• Have you tried any troubleshooting so far?  

Please let me know the answers to these questions, and I'll be happy to help you further.

Sincerely,
Jonathan

[Tca · Accepted solution]

Technical information

Model: Thermostat-1.4

Device ID: XXXXXXXXXXXXX

Serial no.: XXXXXXXXXXXXX

Software version: 1.3-10

Wi-Fi MAC: XXXXXXXXXXX

IP: XXXXXXXXXXX

Battery state: OK

Battery voltage: 3.14 volts

forced air gas, yes calling for heat, no WiFi error, heater worked until power outage, power was out so no wifi

[sicsacol]

Hi @Tca,

Thanks for your reply. 

To better assist you, please share a picture of your current wiring configuration. Also, please let me know if the issue occurs only with heating or also with cooling. This information will help me provide you with the most accurate assistance.

Any additional details you can provide will be helpful.

Cheers,
Jonathan

[Tca]

Heating only,  no pictures allowed. Wiring installed per directions.

[sicsacol]

Hi @Tca,

Thanks for your response. 
I appreciate the information shared. In order to continue, the picture of your wiring installation is important to verify how the wires are connected and check if you have a C wire connected. You can upload the picture by clicking on the "camera icon" before sending the reply. This information would be really helpful to provide you further assistance.

Please let me know if you have any questions from here, as I'd be happy to take a closer look and assist you further.

Cheers,
Jonathan

[Tca]

I do have a c wire connected 

[sicsacol]

Hi 

Thanks for the information shared. 

Just to be on the same page, could you please confirm whether you have a conventional or heat pump system? Also provide the following information:
On your thermostat, go to Settings > Technical info > Power, take a picture of the information displayed and send it to us. A picture of your wiring configuration would be really helpful. 

Please let me know if you have any questions from here, as I'd be happy to take a closer look and assist you further.

Regards,
Jonathan