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Nest Thermostat Fan issue

Yuliaa2
Community Member

‎01-10-2025 01:25 PM

Hello,

We just recently moved and the new house has 2 nest thermostats. According to the nest app the downstairs unit seems to have a fan constantly running nonstop in both cooling and heating modes. All the fan settings are disabled. What could be the problem?

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moralesvicente
Community Specialist
Community Specialist

‎01-13-2025 06:31 PM

Hello Yuliaa2, 

 

Thanks for posting here in the community forum. I’m sorry to hear that the fan of your thermostat is not operating as expected, so don’t worry. It’s a pleasure to assist you.

To provide you with accurate troubleshooting steps, please help me out by answering these following questions:

  • What model of thermostat do you have? For your reference, check out this article: How to tell which Nest thermostat you have. 

  • Could you please remove the thermostat from its base plate and check if the fan continues to run?

  • Have you checked if the thermostat has an active schedule? 

  • Could you please share a picture of the wiring system connected to the thermostat?

Any additional details you can provide will help diagnose the situation.

 

Best regards,

Daniel

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