cancel
Showing results for 
Search instead for 
Did you mean: 

I have an error message e74

LizG
Community Member

We purchased our home and it had the Nest Learning Thermostat installed and according to the information here it is the 3.4 version or Gen3. When I try to set up the Nest App but apparently the previous owner had it set up and so it says it is connected althought it is not connected by me so I cannot get access to information that is further into the process of how to resolve this issue myself. The wires are connected as indicated in the diagram. Please help. I have two disabled people living in the house and I need to get this resolved.

 

4 REPLIES 4

MartinJEvans
Community Member

Why don't you just reset the thermostat to factory settings? Press the front of the thermostat, select settings and rotate the dial to reset. Then go through the menues to set it up again and fire up the nest app on your phone to add it to your google home.

EdwardT
Community Specialist
Community Specialist

Hi folks,

 

@MartinJEvans, thanks for the help!

 

@LizG, thanks for reaching out. The message that you're getting means that your Nest Thermostat is not detecting power from the RH wire. If you haven't yet, please try the steps on this link to isolate the issue.

 

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi LizG,

 

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do. 

 

Thanks,

Edward

EdwardT
Community Specialist
Community Specialist

Hi LizG,

 

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

 

Thanks,

Edward