cancel
Showing results for 
Search instead for 
Did you mean: 
Replies are disabled for this topic. Start a new one or visit our Help Center.

Nest error E9

Adilamasham
Community Member

Thermostat is showing E 9 error  not working 

3 REPLIES 3

JenniferV
Community Specialist
Community Specialist

Hi Adilamasham,

 

Thanks for reaching out. E9 error code means that the thermostat detects a wire in the C terminal but can't complete a power-sharing circuit. Let's check this further.

 

A few questions: what type of Nest Thermostat do you have? How's your Nest Thermostat wired? What's the power reading of your Nest Thermostat (You can find this information by going to settings > Technical info > Power)? 

 

I'll look forward to your response.

 

Thanks,

Jennifer

MelbaDT
Community Specialist
Community Specialist

Hey there, 

 

How's it going with your thermostat? Still need our help? 

 

Best, 

Melba

MelbaDT
Community Specialist
Community Specialist

Hi, 

 

We haven't heard from you in a while so we'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