New dual fuel installation - Alt heat not working

[r2d2c3p0]

Just had a new heat pump / oil furnace installed. The Honeywell T6 Pro worked correctly by switching over to oil when calling for 2 degrees or more of heat on the thermostat.

The Nest does not do this. So far the only way to get the oil furnace to function is to enable Emergency Heat in the Options. Running the option to TEST the furnace as the dual fuel option does nothing.

The wiring diagram attached is identical to how the correctly functioning new T6 was.

  

[NickP1]

Hello, you can check this https://www.googlenestcommunity.com/t5/Nest-Thermostats/How-Bi-ernegy-mode-is-working/m-p/273216#M55...

[r2d2c3p0]

I spoke to Google Support about this issue and they were clueless. At this point I'll be returning it. 200 for a thermostat that does not do what a 50.00 thermostat does do is pathetic. Google bought Nest to collect more data on us and not to innovate.

[Jake]

Hey there,

Thanks for the helpful reply NickP1.

I am sorry to hear about the trouble you are running into. I wanted to check in, and see if you still have the device. If so, I would be happy to take a closer look, and see if I could be of any help. Please let me know.

Best regards,

Jake

[Jake]

Hey there,

I wanted to check in 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.

Best regards,
Jake

[r2d2c3p0]

Hi Jake. Thanks for the reply. I returned the thermostat and went with a smart honeywell.

[Jake]

Hey there,

With you no longer having the device, we are not able to troubleshoot the issue further. With that being the case, I am going to go ahead and lock the thread at this time. If you have have any questions from here, please feel free to create a new post.

Best regards,

Jake