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Problem wiring new 4th Gen Nest Thermostat

David_B
Community Member

‎03-26-2025 01:08 PM - edited ‎03-26-2025 01:12 PM

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I am trying to install a 4th Gen Nest replacing Econet thermostat. Latter connected to RUUD Econet-enabled high efficiency gas furnace. I have wires that are not noted in the Google Nest compatibility guidance (E1 - Green and E2 - White). R - Red and C - Blue are OK. Orange, black and brown unused.

Is the Nest 4th Gen compatible? Where do I connect E1 and E2 cables to Nest thermostat board?? Thanks in advance for  help!

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Patrick_Caezza
Diamond Product Expert
Diamond Product Expert

‎03-26-2025 04:22 PM

@David_B 

Your current thermostat uses a propitary interface that is not compatible with any of the Nest thermostats


To ensure that I see your reply, please tag me using @Patrick_Caezza
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