![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 :
![Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow - Amazon.com Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow - Amazon.com](https://m.media-amazon.com/images/I/71Iu3puyhaS.jpg)
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow - Amazon.com
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![Tip on how to fix "wiring has changed" error on Nest Thermostat. Loose wire connection? Easy fix!!! - YouTube Tip on how to fix "wiring has changed" error on Nest Thermostat. Loose wire connection? Easy fix!!! - YouTube](https://i.ytimg.com/vi/ocieDKNZZNA/maxresdefault.jpg)
Tip on how to fix "wiring has changed" error on Nest Thermostat. Loose wire connection? Easy fix!!! - YouTube
![wiring - How should my third-generation Nest thermostat be connected? - Home Improvement Stack Exchange wiring - How should my third-generation Nest thermostat be connected? - Home Improvement Stack Exchange](https://i.stack.imgur.com/f2oUP.png)