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Thermostat is blowing cold air

Drlelou
Community Member

2 weeks ago

  • I just installed my 4th gen thermostat. Heat was on and working prior to installation it is now blowing cold air and cooling the house. It started at 69, now it is down to 63 and set to go to 70. I have heat pump not radiator. I don’t know how to attach photos or I would
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1 REPLY 1

moralesvicente
Community Specialist
Community Specialist

a week ago

Hello @Drlelou, 

 

Thanks for reaching out to the Google Nest Community Forum. I understand that since installing your Nest Learning Thermostat (4th gen), your system is blowing cold air despite being set to heat. I see that your home temperature has dropped from 69° to 63°, even though the target is 70°. I am here to assist you in resolving this issue.

To better identify the solution, could you please answer the following:

  • Do you see an error code on the thermostat display?
  • Could you confirm that the correct fuel type was selected during setup?

In the meantime, please try these troubleshooting steps:

  1. Verify the wiring: Ensure all wires are firmly seated in their terminals.
  2. Adjust Heat Pump Orientation: If you have a heat pump, the "O/B" orientation setting may need to be toggled. You can find detailed steps in this article: Troubleshoot heat pump issues.

To upload a picture, just log in by clicking your profile in the top-right corner. Then, look for the camera icon when you reply to a post; click that to upload your photo.

Please let me know how it goes.

 

Best regards,

Daniel

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