EWC Controls Forum

We recommend using the NCM-300 Zone panel. The NCM-300 is compatible with the Nest Thermostats. There is a wiring diagram on our website under Manuals and there will be an option for Wiring Diagrams. This will show you how to replace your ST-2C Zone Panel to the NCM-300. If you have any more ...

The green status light blinking is normal. There is no code/error for how fast the status light is blinking. The compressor light is orange because that is just the color of the LED. I would call a contractor to go to your house and take a look at your HVAC equipment. If you need help or have any ...