Dontunderstand1
Apr 11, 2012, 08:31 PM
My furnace won't stop blowing air I don't know what's going on it's never done this before, it just starting doing it one night. The thermostat says it's on sleep and I turned the furnace off at the thermostat but it's still blowing. It's only blowing cool air. The model is a concord 90 plus and I'm guessing it's only a few years old what should I do to fix it?