e104 error code:

[Jim5]

I have checked the wiring and reset the thermostat. There has been no work done on the electrical or the HVAC unit. 

[MelbaDT]

Hey Jim5, 

Thanks for reaching out and sorry for the delayed response. I also appreciate that you've already tried those steps.

An E code on your Nest thermostat is typically caused by miswiring the thermostat during installation.They can also be caused by a worn part on the system’s control board which will require service by a professional.

What type of Nest thermostat is this? Also, have you tried checking on your thermostat's G wire? If unsure on what to check, please follow the troubleshooting guide here: https://bit.ly/39m6x2g

Keep me posted. 

Best, 

Melba

[MelbaDT]

Hey there, 

Checking back in — how's your nest thermostat now?

Best, 

Melba

[MelbaDT]

Hi, 

I haven't heard from you in a while so I'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community.

Best, 

Melba