Nest 3rd generation 5 wires no common

[sldurant1]

I am having issues turning on the furnace. I have a white, yellow, red, and 2 green wires. The air conditioner worked fine. 

[Patrick_Caezza]

@sldurant1 

Can you post a picture of the original thermostat's wiring here?

[sldurant1]

We figured it out. We had both Rh and arc wires connected. We only needed to connect one. 

[sldurant1]

Typo…Rc

[Patrick_Caezza]

@sldurant1 

Did the original thermostat have wires connected to both the Rc and Rh terminals or just a jumper?

[sldurant1]

I think there was a jumper in the old thermostat.

[SoriaD_]

Hello @sldurant1 

Thank you for reaching out to our Nest Community. Don't worry, I'd be happy to help you with your Nest Thermostat's wiring.

I fully understand this situation. Let me give you a hand.

• I want to start by asking you what type of Nest thermostat do you have?
• When did the issue stared?
• Do you see a specific error code on your Thermostat display?
• If it is possible you can share a picture showing your previous and actual wiring configuration.

Feel free to keep us posting, we're here to find a solution for you.

Best regards.

Douglas.