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furnace running when ac turned on

gnarlysheen
Community Member

4 weeks ago - last edited 4 weeks ago

Installed a new nest thermostat and when I turn the AC on the furnace also turns on. This did not happen with my old thermostat. Heat works fine. Please Help!

 

 

 

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1 REPLY 1

Derickf
Community Specialist
Community Specialist

3 weeks ago

Hi @gnarlysheen,

 

Thanks for reaching out to the community. I'm sorry to hear your Nest thermostat is turning on the furnace instead of the AC. I'm happy to help.

To gather the necessary information, please answer the following questions:

  • What model of Nest thermostat do you have? This article might be helpful: How to tell which Nest thermostat you have.
  • What type of HVAC system do you have?
  • Could you please share a picture of your Nest thermostat’s wiring?

I'll be waiting for your reply.

 

Best regards.

Derick.

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