Nest blowing cold on heat setting

[Markchartnett]

I have a 2 stage packaged ac and gas furnace with dehumidifier. System is blowing cold air when I run heat. I have changed the O/C setting and that didn’t help. When setting up the equipment, my heat option only allows electric which I think is my problem. Anyone have a suggestion?  Thanks. 

[Patrick_Caezza]

@Markchartnett 

Can you post a picture of the original thermostat wiring and one of how you have wired the Nest?

[Markchartnett]

 

 

 

[Markchartnett]

Also, the aux heat works when I test it. 

[Patrick_Caezza]

@Markchartnett 

Can you post a picture of the terminal block in the air handler?

[Markchartnett]

@Patrick_Caezza 

see below. I can send additional pictures if you need them. Thank you.