3rd gen nest learning thermostat

[2Newhips06]

We have forced air furnace. The air conditioning worked just fine. When we set it to heat the air conditioning fan comes on and we get no heat. Y1- yellow, w1 - white, G- fan, B- blue and Rh- red.

What have we done incorrectly?

[moralesvicente]

Hello  2Newhips06, 

Thank you so much for posting in this community. I’m sorry to know that your Nest Learning Thermostat 3rd Gen isn’t kicking heating. Don’t worry, I’m here to help.

Could you please answer a few questions so I can help you effectively?

• Is it a new installation? 
• Do you see an error code on the thermostat?

In the meantime, try to perform these steps:

• Make sure to fully insert each wire into its respective connector.
• Verify that every connector with a wire is in the down position.
• Check that 6 mm (⅜") of wire is exposed for each connection.

I'll look forward to your response.

Best regards,

Daniel.