E4 Error

[Brucef08]

One of my Learning Thermostats suddenly will not stay charged and I am getting an E4 error message. I have checked the Rh wire connection which is solid. My other Nest thermostats are working, so I don't think I have a problem at the control board. Advice?

[GarrettDS]

Hey there

I'm so sorry to hear about the issues that you're having and the error message you're receiving, I'm sure it's confusing but I'm happy to help. 

I was able to find this article that will help with troubleshooting the power issue that is the E4 error code. 

Please let me know if you have any further questions. 

Best regards, 

Garrett DS

[Jake]

Hey Brucef08,

I just wanted to follow up and ensure you are good to go. Please let me know if you have any questions from here, as I would be happy to take a closer look and assist you further. 

Best regards,
Jake

[Jake]

Hey Brucef08,

It has been a few days since the last reply, and I am going to lock the thread at this time. If you have any questions, please feel free to create a new post. 

Best regards,
Jake