6 wires plus jumper wire to nest thermostat E

[Su]

am I compatible with nest thermostat? if so, how can i connect wires to where? and how about c-wire?

W - white, B - Blue, Rc - Red, G - Green, O - Orange, Y - Yellow, Rc&Rh - jumper, no c-wire*

[laurentbourg · Accepted solution]

yes your system is compatible, connect as follows:

- white as W1
- green aa G
- blue as C
- yellow as Y1
- orange as *OB
- red as R

Can you also please send me the make and model of your current thermostat? thanks

[nickdonellan]

it's working perfectly now.  Thanks so much for your help that was all I needed. 

Nick

[Markjosephp]

Hello nickdonellan,

Awesome! I'm glad to know that it was sorted out. Don't hesitate to give us a shout and create a new thread if you have any further questions or concerns.

Best regards,

Mark

[Jenelyn_O]

Hi gsam,

Thanks for reaching out — I saw your post and wanted to chime in. I'm sorry for the delay.

Nest Learning Thermostat is compatible with the wiring you have. The brown wire connected to the B terminal  is a common wire. 

You can check this wiring guide: (Note: You don't need to use any jumper wires)

• White wire to W1 Nest terminal
• Yellow wire to Y1 Nest terminal
• Green wire to G Nest terminal
• Blue wire  to OB Nest terminal
• Brown wire to C Nest terminal
• Red wire to RC Nest terminal

Please let me know if you have any questions or concerns. 

Thanks for assisting on this thread @Markjosephp.

Regards,

Jenelyn

[gsam]

Hi @Jenelyn_O @Markjosephp 

Thank you for sharing the information.

I trier above combination but I wasn’t able to start the Google nest thermostat. Everytime I put the thermostat and I kept getting this error message “No power to common wire detected. Learn more at nest.com/e79”

I am attaching the screenshot of the error and wiring in thermostat. I am also attaching the wiring the Hvac panel for these 6 wires. 

[gsam]

Hi @Markjosephp 

Hope you are doing well

I have bought 2nd generation Nest Learning thermostat. This is my current wiring and it does not have C wire. Can you please suggest if Nest Learning thermostat is compatible?

Please let me know if you want to picture of my hvac panel. I have three zones in my house. Below thermostat wiring is for the Master thermostat. I have two more thermostat which acts as slave.