Nest E wire compatibility

[Wildcat_Matt]

After successfully installing my Nest on the downstairs unit.  I went to install upstairs and it appears the compatibility checker doesn't like the E wire for my system.  See pic below.  I believe it's a heat pump.  The compatibility checker says it's incompatible unless I omit the brown E wire.  I'm guessing I could just leave it disconnected and potentially not have backup heat functionality but suspecting there's a better way considering the E wire isn't listed as an incompatibility in the help docs.  Any help out there?

 

[Jenelyn_O]

Hi Wildcat_Matt,
 

Thanks for reaching out. I'm sorry for the delay. Your system is compatible with Nest Learning Thermostat 3rd Gen. You can follow this wiring: (Y1, G, C, O/B, W2, E, RC).
 

Best,

Jenelyn

[Jenelyn_O]

Hi there,

I wanted to follow up if you still need help. Please let me know if you’re still having any concerns or questions from here.

Thanks,
Jenelyn

[Jenelyn_O]

Hello there,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns, as I'll be locking this thread in 24 hours.

Regards,
Jenelyn

[Wildcat_Matt · Accepted solution]

I got it figured out.  I was able to hookup my Nest (non learning) without the E wire and all appears to be working well.  I'm not worried about the backup heat function as there is a another gas furnace that would be doing most the work if the heat pump would be struggling.

[Jenelyn_O]

Hey Wildcat_Matt,

Thanks for the update. I'm glad that you successfully installed your Nest Thermostat. Please let me know if you still have questions or concerns, as I'll be willing to assist you further. Otherwise, I'll be locking this thread after 24 hours. 

Best,
Jenelyn