![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 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](https://i.redd.it/8wb9d1tna7k31.jpg)
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 : 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 :](https://preview.redd.it/my-nest-isnt-detecting-my-ob-wire-and-is-blowing-hot-air-v0-me3qw1vhp4sa1.jpg?width=640&crop=smart&auto=webp&s=37680ebe4384cec553bad8cb99c42d9a7ba58a4b)
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 :
![Heat Pump without OB wire. How to wire to electronic thermostats? (like Nest) - DoItYourself.com Community Forums Heat Pump without OB wire. How to wire to electronic thermostats? (like Nest) - DoItYourself.com Community Forums](https://www.doityourself.com/forum/attachments/thermostatic-controls/10787d1364564056-heat-pump-without-ob-wire-how-wire-electronic-thermostats-like-nest-old-thermostat-wiring-2.jpg)