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Blue Wire installation

JRduckett
Community Member

‎05-23-2023 07:07 PM

On my Emerson thermostat the blue wire was not connected. should it be connected on my Nest thermostat? I have notice the battery is not charging and the fan is running all the time.

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3 REPLIES 3

thermal
Community Member

‎05-25-2023 02:36 AM

You should definitely connect it. That's probably your c wire which is able to provide a constant sound of power. What you described is behavior compensating for a lack of power in which the thermostat will run a circuit in order to siphon off power and charge the battery. 

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JRduckett
Community Member
In response to thermal

‎05-26-2023 03:24 AM

  • Yes, that solved my problem 
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zoeuvre
Community Specialist
Community Specialist
In response to JRduckett

‎05-26-2023 09:56 AM

Hi JRduckett, 

 

Happy to hear that everything has been sorted out. Since we can now consider this one complete, I will be locking this in 24 hours if we won't hear back from you again. Feel free to start a new thread and we'll be happy to help. 

 

Thanks for your help, @thermal. 

 

Cheers,

Zoe

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