Compatibility Check Assistance

[Thermostat6]

 compatibility Check

[CoolingWizard]

@Thermostat6 , you have what appears to be a Heat Pump system. The odd thing is you have 2 wires connected to W1.  Most heat pumps have auxiliary heat and use the AUX connector, but your thermostat is wired as secondary heat. Do you have access to your indoor air handler unit?  Do have Gas Furnace or Oil burner Furnace?

Your wires being used are:

R - Red wire , 24Vac Power In

C - Blue wire, Power Common

W1 - White wire, secondary heat

W1 - Black wire, secondary heat

Y1 - Yellow wire, Compressor Relay

G - Green wire, Blower Fan Relay

O/B - Orange wire, Heat Pump Reversing Valve; changes mode Heat/Cool

AC Cooling Wizard

[Jenelyn_O]

Hi there,

Thanks for posting in the Google Nest Community forum. I just want to check if you managed to see the response above. Please answer the question that is being asked, as it will help us to move forward.

I appreciate your help, @CoolingWizard.

Best,

Jenelyn

[Thermostat6]

Electric. Yes have access to unit in attic. 

[CoolingWizard]

@Thermostat6 , she have time, go to the attic and see where  brown thermostat cable enter the furnace cabinet.  That will the the panel you will need to open. Once inside the unit, you will see where the black wire and the white wire terminate.  Take a picture and post it so we can see, please.

AC Cooling Wizard

[Jenelyn_O]

Hey Thermostat6,

Please take a photo of the wires connected to your systems control board, as it will help us further to check your system compatibility with the Nest Thermostats. 

You can visit this link for additional reference.

I appreciate your help, @CoolingWizard.

Thanks,

Jenelyn

[zoeuvre]

Hi folks,

@Thermostat6, I want to check and see if you are still in need of any help. Please let me know, as I would be happy to assist and answer any questions you may have.
 

Thanks for your help here, @CoolingWizard and Jenelyn. 

Regards,

Zoe

[zoeuvre]

Hi Thermostat6, 

Just one final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know. 
 

Cheers,

Zoe