Nest Thermostat Blowing on Cool blows hot air

[aerispac]

My Nest thermostat is acting weird.

Now I can't push cool air. I tried 50 times by closing the breaker and restarting the whole thing and once it worked for 30 minutes cooling and after hot air started to come out even though on my Nest it is still in cool mode

what is wrong here?

Yesterday, I did a full factory reset of my thermostat and initially it worked. Cool air coming out when it cool mode. Immediately when I connected my phone with the Nest app, it started pushing heat while in cool mode.

Link for my wiring : nest wiring 

[Markjosephp]

Hello aerispac,

I'm sorry to hear about the trouble you're experiencing with your Nest Thermostat. It sounds like you've been quite diligent in trying to troubleshoot the issue. If you've already attempted a full factory reset and are still encountering problems, there might be a few other steps you can take.

Ensure that the thermostat is correctly wired and connected to your HVAC system. Double-check the wiring configuration and make sure there are no loose connections. If the issue persists, please check out the troubleshooting heat pump issues article for changing the orientation.

Let us know if you need more help.

Best regards,
Mark