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Nest turning on boiler even when off

Sven1
Community Member

I am currently switching a customer from a cast iron boiler to a wall hung tankless. Anyway I have traced the wire several times and there is no problem with the wiring. I can jump the r and w and kick the unit on. When I pop the face of the nest on the unit fires even though the nest is off.  I have r,w,and c ran to the nest. Why am I having this issue?

 

3 REPLIES 3

Ryan_G
Community Specialist
Community Specialist

Hi Sven1,

 

Thanks for reaching out here in the Google Nest Community.

 

I'd like to further check on what's going on by getting a photo of your current wiring configuration to the Nest Thermostat. Is it still doing the same thing even if you remove the Nest Thermostat display from the base?

 

Regards,

Ryan

Ryan_G
Community Specialist
Community Specialist

Hey folks,

I just wanted to follow up and see if you're still in need of help. Please let us know as we would be happy to answer any questions you may have. 

Best regards,
Ryan
 

Ryan_G
Community Specialist
Community Specialist

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and 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 thread in 24 hours.

Have a great day.

Best regards,
Ryan