cancel
Showing results for 
Search instead for 
Did you mean: 
Replies are disabled for this topic. Start a new one or visit our Help Center.

Google Thermostat wiring question

SamB1
Community Member

I installed the Google Nest thermostat and added a C wire to avoid power problems. My unit is functioning but my wires are connected reverse: White wire is connected to the Y (cooling) and yellow wire to the W (heat). I tried to connect these wires in the correct way but instead of cold air I was getting warm air and instead of heat, I was getting cold air. I have a heat pump, but I didn’t use the O/B. I tried to connect W to the O/B, but didn’t work. I would really appreciate any advice. Thank you. 
P.S. I also checked the unit to make sure my wires are connected correctly: inside of my A/C the Yellow is connected to Y and white is connected to W. 

1 Recommended Answer

RenzJ
Community Specialist
Community Specialist

Hello SamB1,

 

Thanks for getting back to us. Follow the steps below:

Remove the Nest Thermostat from your Google Home app.

  1. Open the Google Home app.
  2. Tap your device's tile.
  3. Tap Settings Remove device Remove.

For safety reasons, turn off the HVAC system's power at the fuse box or system switch before you remove and reattach the wire.

Y-Yellow

W-White

G-Green

C-Blue

R-Red

Reset the Nest Thermostat to factory reset.

  1. Go to Settings.
  2. select Factory Reset.
  3. Your thermostat will ask you to confirm your choice. Once you've confirmed, your thermostat will take a few moments to reset.

Keep us posted.

 

Cheers,

Renz

View Recommended Answer in original post

5 REPLIES 5

RenzJ
Community Specialist
Community Specialist

Hi SamB1,

 

Thanks for posting here in the Google Nest Community. We'd be happy to take a look into this for you. We can set it up on the Nest Thermostat as a heat pump and correct the wire configuration. We can change the O/B orientation to match your heat pump function.

 

Send us a photo of your heat pump wiring so that we can send you the correct wiring configuration and guide you in reinstalling the Nest Thermostat on your system.

 

I look forward to your response.

 

Best,

Renz

SamB1
Community Member

Hi Renz, Thank you for responding to my question. Please see the following photos from my new Google thermostat, my unit and old thermostat.

IMG_4601.PNGimage0.jpegimage1.jpeg

SamB1
Community Member

With this connection everything is working, but I know that Y and W wires are connected to the wrong spots.

RenzJ
Community Specialist
Community Specialist

Hello SamB1,

 

Thanks for getting back to us. Follow the steps below:

Remove the Nest Thermostat from your Google Home app.

  1. Open the Google Home app.
  2. Tap your device's tile.
  3. Tap Settings Remove device Remove.

For safety reasons, turn off the HVAC system's power at the fuse box or system switch before you remove and reattach the wire.

Y-Yellow

W-White

G-Green

C-Blue

R-Red

Reset the Nest Thermostat to factory reset.

  1. Go to Settings.
  2. select Factory Reset.
  3. Your thermostat will ask you to confirm your choice. Once you've confirmed, your thermostat will take a few moments to reset.

Keep us posted.

 

Cheers,

Renz

SamB1
Community Member

Thank you very much!