Nest Thermostat Only Cools using Heat Pump wiring when I have furnace

[remzo]

I have a conventional wiring setup. Y1, G, Rc, W, and C. My Gen 3 Nest thermostat will not blow cold air when wired this way. It will only blow cold when wired to Y1, G, OB(set to B), C and RH.

When I say it won't blow cold air I mean it only blows room temperature air not hot. 

Why? 

[remzo]

Original wiring 

Nest wiring that works 

 

 

[Jenelyn_O]

Hi remzo,

Thanks for posting in the Google Nest Community forum — I appreciate the information you have already provided. I'm sorry for the delay. I'd like to take a closer look at it. Could you please share with us the photo of your system control board where the wires originally connected? Also, the make and model of it to further check the compatibility of your system to the Nest Learning Thermostat. 

Best,

Jenelyn

[remzo]

Um the pics attached nearly a week ago did that already. I solved this problem by throwing the nest thermostat directly into the garbage where it belongs. Count me out. Closed topic. 

[Jenelyn_O]

Hi there,

We understand. If you ever change your mind, we'll be here to help. As per your request, we'll be locking this thread after 24 hours, but if you still need help, I would be happy to keep it open.

Thanks,

Jenelyn