Wyze thermostat White wire

My old thermostat uses RGCYW. Everything works fine with the old thermostat. (Non-heat pump). I hook up the wires as directed by the instructions via the app and it says “white wire not found”. I removed and reconnected it in the terminal, but it’s still not recognizing the white wire. Any idea what’s happening? Any help is aprreciated

Do you have a picture of the furnace side of the wiring? If heat worked on the old thermostat, then sometimes the wire detection fails to work properly and you can keep trying until it gives you the option to skip/ ignore the fault.

1 Like