Help with Nest Thermostat Wiring

[Ed930]

Hello I'm trying to install my new Nest and the wiring doesn't seem to match up.  This is my old unit wiring.  I've matched the coloring but it doesn't seem to work.  I get heat instead of cold air when it starts up.  

Any help is appreciated.  

[MelbaDT]

Hey Ed930, 

Sorry for the delayed response but thanks for posting and for the photo.

Have you tried changing the settings for orientation of your heat pump? Take a look at the steps below:

1. Open the Home app.
2. Tap your thermostat.
3. At the top right, tap Settings.
4. Select Thermostat.
5. Scroll until you find Heat pump. It should show which wire configuration is currently selected.
   • If the O option is highlighted, select B.
   • If the B option is highlighted, select O.
6. To make sure the issue is resolved, test your heating and cooling again.

Keep me posted. 

Best, 

Melba

[MelbaDT]

Hey there, 

How's your thermostat now? Still need our help?

Best, 

Melba

[Ed930]

Thank you for help. I ended hiring a technician as the wiring was still wrong. It works fine now. 

[Jake]

Hey there,

Since this thread hasn't had activity in a while, we're going to close it to keep content fresh. I found an article that could be of help. If you have additional questions, feel free to submit another post, and provide as many details as possible so that others can lend a hand. Hope this helps!
 

Best regards,

Jake

[MelbaDT]

Hi, 

Since it's been since this thread was last updated, we'll be locking it if we won't hear back from you again within a day. Should that happen, feel free to create a new one if you have more questions or have other concerns in the future. 

Best, 

Melba

[dl1658]

I need help I don’t have a circuit board for my heat only system. No common.