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Young
Community Member
since ‎12-19-2021
‎01-21-2022

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  • 9 Posts
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I only have R and C wires attached to my old Honeywell thermostat. There are white, blue, and yellow wires, but they are not attached to anything. I have 2 zones, each with separate HVAC units and thermostats. The one on the main level is working fin...