Issue with Nest Setup. AC and Heat are turning on at the same time

[Tall_Guy_NJ]

I'm setting up a new Nest Thermostat.  I'm replacing a Honeywell connected thermostat.  I have 5 wires.

Blue to C, Green to G, Yellow to Y, White to O/B and Red to R

I went through the set up process and attached the wires per the recommend locations, which corresponded to what I had.  Blue to C, Green to G, Yellow to Y, White to O/B and Red to R

I have pictures attached.

The issue is, when I turned the AC on, both the AC and the Furnace both turn on.  I disconnected the wires and reconnected, but same issue.  I took the Nest off and put on my old unit and it's working fine.

Thoughts?

[Sebnestuser]

This is my setup and compare

but if I’m not mistaken the white wire has to go in to the  W terminal

https://www.flickr.com/photos/80134125@N04/shares/554g14

also check out this guy’s tutorial about wiring your thermostat 

https://youtu.be/CCNIko3iZIE

[Tall_Guy_NJ]

So, I hooked up the white wire to the white terminal on the Nest (shouldn't have been on the the OB) and the AC turns on without the furnace.

The issue I have now, is the heat is turning on the fan, but not the furnace.

[Tall_Guy_NJ]

Issue resolved. I needed to reset the unit to recognize the new wires.

[GarrettDS]

Hey folks,
It looks like we have come to a solution so I'm going to be locking this thread. If you have any other concerns or questions, please feel free to create a new thread.

Have a great day.
Garrett DS