Can someone look at wiring of my thermostat and HVAC panel? I don't understand why R wire is connected to RC at thermostat. I am also not sure why Y wire is not connected at HVAC panel.
Here is my problem and some facts.
- My thermostat display stays blank.
- Heater continuously stays on.
- I never had problem with AC (although Y wire is not connected at HVAC panel)
- Model # Honeywell CT3650
- I tried replacing brand new battery, but display won't turn on.
- This is not new installation.