Smart thermostat not controlling ac

[Robert6]

My smart thermostat works fine for heat but when I turn on the ac, the ac starts but the heater blower will not turn on. Any ideas?

[Patrick_Caezza]

Did it work in the past or is this a recent installation of the Nest thermostat?

If recent, post a picture of the original thermostat's wiring here

[MelbaDT]

Hey folks, 

Thanks again for taking the time to respond here, Patrick_Caezza. 

Robert6, I'm chiming in to ensure you've seen Patrick's answer above. If yes, please provide the answers to his questions so we could keep the ball rolling. 

Best, 

Melba

[Ryan_G]

Hey Robert6,

I just wanted to follow up and see if you're still in need of help. Please let us know as we would be happy to answer any questions you may have. 

Best regards,

Ryan

[Ryan_G]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and make sure that you’ve seen our response.

Please let us know if you have any other questions or concerns as I will be locking this thread in 24 hours.

Have a great day.

Best regards,

Ryan