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Help

3rd gen Thermostat not working

Surpreet
Community Member

2 weeks ago

I have same problem like in this link with other user https://www.googlenestcommunity.com/t5/Nest-Thermostats/Problem-installing-wiring-my-Nest-Learning-t...

 

Same model i have i dnt know how to fix it .if someone have idea plz let me know . Thermostat not turn on the furnace or AC or fan

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4 REPLIES 4

DJBoozey
Community Member

2 weeks ago

Add me to the list 🙃 - dang it.  Why did I buy into smart technology that I don’t even take advantage of???

Ivan_R
Community Member

2 weeks ago

Hi there,

 

I understand you're frustrated that your Nest thermostat isn't controlling your HVAC system furnace, AC, and fan. Let's work together to fix it.

 

First, check if your Nest thermostat is receiving power. Ensure the display is on and responds to touches. If not, try charging the base with the provided USB cable. Low battery can sometimes affect system function.

 

Some Nest thermostats require a C-wire for continuous power. Check your wiring and see if a C-wire is connected on both the thermostat and the HVAC system. If not, consult an HVAC professional for proper installation. We can also refer to this help article to verify if your Nest thermostat wiring is correct.

 

Keep me posted!

 

Regards,

Ivan

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DJBoozey
Community Member
In response to Ivan_R

2 weeks ago

Found out mine is actually gen 2 - and I keep getting it connected to the internet and it looks good and then it resets or either starts heating instead of cooling.  Went and bought the cheaper one just to get a thermostat working and it needs the power C thing - I’m out of town for work and can’t deal with it until I get back home 

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Ivan_R
Community Member
In response to DJBoozey

2 weeks ago

Hi DJBoozey,

 

Sounds like you might be having some hardware issues with your Gen 2 thermostat. Random resets and incorrect temperature control are definitely abnormal behavior. Since you're away, I recommend filling out this Contact Us form. Our Support Team will be in contact with you as soon as possible to discuss the issues you've been having with your Nest Gen 2 thermostat. They can help troubleshoot the problem and determine the best course of action.

 

Let me know if you have any further questions!

 

Regards,

Ivan

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