No A/c Function

[Lmo2020]

Help , I have a 4 wire system that controls my Furnace and AC. I can only get my Nest to run my furnace and not my AC. What can I do different with wiring. Thank you . 

[Jknh]

I have the exact same issue, so I’m following.

[Patrick_Caezza]

Post a picture of your original thermostat's wiring here too

[MelbaDT]

Hey folks, 

Lmo2020, Jknh, I'm chiming to check if you've seen Patrick's responses above. Please post the requested photos so we could keep the ball rolling. 

As always, thanks Patrick_Caezza for responding. 

Best, 

Melba

[MelbaDT]

Hey folks, 

Checking back in — still need our help with your Nest thermostat devices?

Best, 

Melba

[Jknh]

Thank you. My son figured mine out.

[MelbaDT]

Hey there, 

Jknh, you're welcome and I'm glad to hear that your son sorted it out. 

Keep me posted Lmo2020 should you still need help with yours. 

Best, 

Melba 

[MelbaDT]

Hey Lmo2020, 

Checking back in ― how's it going with your thermostat? Still need help with it? 

Best, 

Melba

[MelbaDT]

Hi, 

We haven't heard from you in a while so we'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

[Patrick_Caezza]

Need to see how the original thermostat was wired, post a picture of it here.