Agri-Pro OB Saw WIre w/Handles Kit | Heritage Animal Health
Trying to upgrade to Nest. What is O/B wire & why is white wire in W2/Aux? : r/Nest
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OB Saw Wire & Handles (2 Count) | Armor Animal Health
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OB Wire Saw Handles Brand May Vary - Cattle OB | OB Equipment | Equipment Supplies | Farm
hvac - Nest Thermostat Wiring problem - Heat does not work - Home Improvement Stack Exchange
What am I doing wrong? AC won't cool. Labels of cables match old thermostat. Settings match (heat pump / 2 stage / OB wire on cool). : r/smarthome
My Nest isn't detecting my OB wire and is blowing hot air, but our outdoor heat pump is blowing cold air. Any ideas for next steps? Pic of wires for reference :