Wyze thermostat not recognizing W2 Wire

I’ve attempted to install Wyze thermostat. Keep getting error of missing W2 wire. It’s all the way in. Decided to reconfigure and left off the W2 wire, but after ten minutes the fan was blowing but the air was not hot. Put old Trane thermostat back on and it worked fine. Any suggestions?

You just need to tell it to ignore the fact that it can’t find the wire. Do not reconfigure it to not have a W2 wire, just skip the wire checking part. (press try again a few times and it will eventually let you skip)

Does your Trane thermostat work without batteries? the B wire on Trane thermostats is usually common, but also can be for a heat pump changeover valve.

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