Blows head on cool setting = just installed the Nest Learning

[VeloGrl]

I have installed many of these for my homes as I renovate and no issues. Now I installed in the condo (not my first city condo) and in cool mode it blows heat. Help, 

I would load pictures of wiring but don’t see that as an option. I tagged each wire from the very old plc and then wired up the Nest (love them) and voila … heat in the cool mode. 

[VeloGrl]

[maedacortez]

Hi VeloGrl,

Thanks for reaching out! I was checking the picture you sent, and it seems like your system likely doesn't use a heat pump. Therefore, I recommend removing the wire currently connected to the O/B terminal and connecting it to the W1 terminal.

I hope this helps!

Regards, 

Manuel