We have a weather maker 8000. And we have gotten a code 12 from the L.E.D light. The code means R-W closed. My question is what is the R-W and where is it located on the Weather Maker 8000?:confused:

This code occurs when you first energize the furnace and the thermostat is calling for heat. Turn the thermostat off, then go to the furnace and turn the power on. Do you still get this code?