wiring diagram for Nest with hot air/AC system in AZ

[Harvey2]

Home App never provided a wiring diagram in the course of installation, promises notwithstanding.  I attached wires labeled R, G, Y, & C to those terminals on the Nest and the wire labeled O to the Nest terminal terminal marked OB. No heat.  Removed wire O from terminal OB.  Still no heat. Help, please.

[EdwardT]

Hi Harvey2,

Thanks for reaching out. I'm sorry to hear that you're having an issue with installing your Nest Thermostat. I'd love to know more about this. Could you share the make and model of your HVAC and old thermostat?

Thanks,

Edward

[EmersonB]

Hello everyone,

@Harvey2 how's it going with your Nest Thermostat? We would appreciate it if you could share with us the information we're asking above. So that we could take a closer look and assist you further.

I appreciate the help, Edward.

Best,
Emerson

[Jake]

Hey there,

I wanted to check in, and let you know that I will be locking the thread in 24 hours.

Best regards,

Jake