intall wires

[zackgregg]

Need help hooking up the nest.  App says it won't work but we have white wire.  App says we don't

[CoolingWizard]

The thermostat has no idea what the color of a wire is.  When the HVAC technician first installed the equipment and thermostat and ran the multi conductor cable between them, the individual color conductors were selected and attached to to terminals R, Y, W, G at the thermostat for example.  And at the HVAC equipment, the same color used at the thermostat are used at the control board in the HVAC equipment.  

for convenience, most thermostat cables, contain red, yellow, white, green, blue, and orange colored conductors. 

If you would like some help, post the picture of the old thermostat base with the wires attached.  

The AC Cooling Wizard

[Markjosephp]

Hello there,

Thanks for the help, @CoolingWizard.

@zackgregg, to better assist you with your wiring setup, could you please share with us your previous and current thermostat's wiring? This will help us move forward. Also, what's the wiring code or message code you're getting?

I'll look forward to your response.

Best,

Mark

[Markjosephp]

Hi zackgregg,

I wanted to see if you still needed help. Please let us know if you have any other questions or concerns.

Thanks,

Mark

[EmersonB]

Hello everyone,

@zackgregg just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, we would be happy to keep it open. If there's more we can do, just let us know.
 
I appreciate the help, Mark and CoolingWizard.

Regards,
Emerson