08-30-2021 07:38 AM
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Original Poster: kelli a
08-30-2021 07:38 AM
Hi Kelli,
Thanks for reaching out to us and welcome to the community! I can totally get the confusion behind complicated HVAC wiring setups. Let's help decode it together.
The Compatibility Checker likely ruled your home incompatible due to your B wire being a possible proprietary setup from your existing HVAC system or that your Rh and Rc wires imply that you have a dual transformer system. These kind of HVAC setups require a Nest Pro to install as they are extremely difficult to wire correctly.
Let us know if you have any further questions for us! We're happy to help.
-From Garrett DS, Community Specialist.