Nest Learning Thermostat with t02 Error

[NWilliams]

I'm installing a new nest learning thermostat and getting a t02 error during initial testing.  The system is split unit with Natural Gas furnace in the attic and outside AC unit.

Original wiring:  Rc (with jumper to R), W, Y, G, C

Nest wiring:  Rc, W1, Y1, G, C

Not sure is the Rc to R jumper on my original setup is the underlying issue.  

[NWilliams]

Nevermind.  I moved the Rc over to the Rh and it's working fine.

[David_K]

You experienced this because Nest thermostats don't use jumper wires, and they shouldn't be connected to Nest Thermostats. If your system needs it, they have an internal jumper and it will use that.

Learn about thermostat jumper wires - Google Nest Help

[NWilliams]

Thanks.  I saw that link but did not believe it gave instructions to my solution.  I looked back at the Nest tutorial and noticed the original thermostat had the exact same set up as mine (into the Rc and jumper to the R).  However, the label they placed on the wire was Rh.  I saw the exact same setup on a youtube video so thought I would give it a shot.  Worked perfectly after putting the red wire in the Rh slot.  Seems Nest should make some comment in either the video or their instructions pertaining to this situation.  Thanks again.  Here is one of the videos at the 1:47 mark:  https://store.google.com/us/product/nest_learning_thermostat_3rd_gen?sku=_nest_learning_thermostat_3...

[Jenelyn_O]

Hi there,

Thanks for reaching out. I'm glad to hear that your Nest Thermostat is working perfectly now. Please let us know if you have questions or concerns, as we'll be willing to assist you further. 

I appreciate the input, @David_K.

Best,

Jenelyn