Issue: Heating or Cooling only the AC compressor turns on and blows cold air.
Please take a look at the pics below. I have connected everything correctly and checked a number of times. The setup process goes smooth except the hot/warm air never coming out of the register.
Below is the picture of my original thermostat wiring. And the Wyze Thermostat is compatible!
Below is the picture of the control board wiring,
Sorry I don’t have pictures of my C-wire adapter wiring but trust me I have checked that too if I made mistake. After two hours of fiddling the same issue every time.
Whether i turn on AC or Heat only the compressor runs and blows cold air.
The heater simply would not turn on.
After several failed attempts I have connected my old thermostat and everything works just fine.