Compatibility?

[Genevievemt]

I was so excited to get my new Nest Learning Thermostat and was sure it would be compatible with the wiring in my home but started the set-up process and now am not so sure... Does anyone know if my system (picture of wiring attached) is compatible?  It's the dual labels that are confusing me, plus the compatibiltiy checker asks if my O/B wire is white or orange, but I think mine is blue? 

[Patrick_Caezza · Accepted solution]

You are compatible.

Give this wiring a try

Green - G to G

Yellow - Y to Y1

Blue - O/B to OB

White - AUX to W2 (set as AUX heat)

Red - R to Rc

Check to see if you have a spare wire behind your thermostat and if yes, use it to make a C wire. If you don't I recommend using the Nest Power Connector so you don't have problems down the road. This is optional, but I always encourage it.

[Genevievemt]

Hi Patrick, 

I finally had a chance to set this up last weekend and so far, so good - thanks for your help! 

[MelbaDT]

Hey folks, 

I appreciate your detailed response again here, Patrick_Caezza. 

Genevievemt, thanks for updating and we're glad to hear that you've managed to get it working by following Patrick's suggestion. Feel free to let us know if you need anything else. 

Cheers, 

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