Thanks for sharing your thoughts here in the community.
We always have one goal, to be as helpful as possible. We could try the wiring configurations suggested by Patrick_Caezza and let us know how it goes by replying to this thread. The red wire should be connected to Rc as it is the power source for your thermostat to share from the HVAC.
Thanks for your help, Patrick_Caezza.
This worked perfectly for us. We were having the same problem - the A/C was blowing hot air. Our old thermostat had the orange wire in W1 so that's where we put it. When we moved it to O/B as suggested, cool air started blowing. Thanks for the solution Patrick!
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.
Mine has done the same thing brand new best thermostat. It won’t cool as soon as the old thermostat is put on it works. I believe the nest thermostat is the issue. Return it!!! Get your money back
It looks like a bunch of people are having this issue. No one seems to be providing a logical solution. Everyone the same thing the heat works but A/C doesn’t. I returned mine they are expensive and did not want to be stuck with it over the return period.
I'd like to bump in here to 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.