Nest not cooling the house and not sure if I have the wiring correct.

[mattcosta]

Hello I had a HoneyWell system installed and I switched over to the Nest. Im not positive if I have it wired correctly for my system because my house is not cooling and there is very little air blowing from the vents.

the system I have is:

lennox cbx27uh-048-230-6-02 (under the house)

lennox xp19-024-230 (Heat Pump outside the house)

Some of my concerns:

•  In the photo of the box (bellow) I noticed there's a brown wire in Y2 that wasn't installed in the original thermostat and is nowhere in sight.
•  also the W wire in the original is orange not white
•  The Aux which also says its W2 in the original had a wire connecting to the E?
•  The S1 and S2 from what I read online is not needed with the nest Learning thermostat

Original Honeywell Thermostat:

Here is the Original Honeywell Installed

Wiring by the unit under the unit under the house:

the wires in the box by the unit

How I wired the Nest learning thermostat:

How I wired the Learning Nest

[Patrick_Caezza]

The only thing I would change is to move the Rh wire to the Rc terminal.

You want to use the outside labels on the old thermostat since you have a heat pump.

Does it heat okay?

[MelbaDT]

Hey folks, 

Thanks again for lending a hand here, Patrick_Caezza. 

mattcosta, I'm jumping in to ensure that everything is good here. Have you tried Patrick's suggestion above? 

Keep us posted. 

Best, 

Melba

[mattcosta]

I think so I did a lot of research and the wiring seems okay. But I'm still having the same issue. I'm going to have someone come out and take a look and update what they say here. Thank you!

[MelbaDT]

Hey mattcosta, 

I understand — having an HVAC technician or a local pro is indeed a good idea. Keep us posted. 

Best, 

Melba

[MelbaDT]

Hey there, 

It's me again — how's it going? Have you had the chance to have an HVAC technician or a local pro check on your system? 

Best, 

Melba

[MelbaDT]

Hi, 

We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.

Best, 

Melba