Where to connect the C Wire? See pictures and diagram

Question

I have Rheem RBHC-14A00NFA AC unit. I am trying to install nest thermostat but don’t know where to connect the C wire. I am attaching the picture of the wires and the diagram. Please help! Thanks

DIY75 · Answer 1 · 2022-06-20T07:38:22.037

0

There is a very elaborate answer to your question in this post:

C -wire

edited Jun 20 '22 at 07:38

answered Jun 20 '22 at 07:23

DIY75

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score 0 · Answer 2 · answered Jun 20 '22 at 11:46

It's the thick brown wire in the bottom wiring compartment

According to your unit's wiring diagram, your C wire should be a brown wire "tail" in the bottom wiring compartment, and while I can't precisely make out what it's wired to right now, it does appear to be present and connected into the existing condenser wiring, which is a good sign that it is indeed the C wire.

Where to connect the C Wire? See pictures and diagram

2 Answers2

It's the thick brown wire in the bottom wiring compartment