Nest Not working for furnace and A/C

[rcruz95]

Am a bit stumped here, have an A/C Unit and a furnace, however I DO have an O/B wire, connecting it all to the nest has not been smooth sailing yet. When setting to heat, the furnace does not turn on, have to set it to always use AUX heat to start the furnace. However after setting that in the settings, it seems that the A/C unit turns on every time that the heat is set. Had to turn off the A/C unit breaker to prevent it from happening. Not sure what to do here, attaching pictures of connections on previous model and Nest connections. Looks like I have O/B, Rh (with jumper to Rc), W, C, G, Y/Y2. Any help would be greatly appreciated!

[Houptee]

Are you certain that you have a furnace as in a Gas furnace for heat, and not a Heat Pump system?

A Heat pump needs to run the ac outdoor unit for heat mode, but the refrigerant aka freon, circulates in reverse when heating mode is selected. If the heat pump cannot keep house warm in extreme cold then the Aux heat kicks in usually electric heat strips in the ductwork or possibly a gas fired furnace.

So you need to determine what kind of heating and cooling system you have in your house to wire it correctly.

[rcruz95]

I am positive I have a gas furnace, in fact when not on aux heat it blows out cold air into the house with a message “2+ hours” until reaching desired heat. I am aware I have the O/B wire but based off what I’m experiencing I’m pretty sure it’s only a gas furnace that’s heating my home not heat pump, unless the non-aux heating is miss configured and that’s why it throws out cold air when on heat mode

[Jhonleanmel]

Hey folks,

We appreciate your help here, @Houptee.
@rcruz95, I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any concerns or questions from here, as I would be happy to take a closer look and assist you further.

Thanks,
Mel

[Jhonleanmel]

Hey there,

Checking back in should you still have some questions here. Let us know by replying to this thread.

Best,
Mel

[Jhonleanmel]

Hi everyone,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

Thanks,
Mel

[Houptee]

Disconnect orange wire and go thru setup again tell nest its a standard ac and gas forced air system see if heat works.