 Well, I'll tell you one thing you can do, and Chuck will back me up on this. If there's no air coming out of your vents, turn the unit off and see after about, what, 30 minutes. And if that coil is frozen up, then it will thaw out. And if you turn it back on, you get air movement. You've probably got a gas shortage of some type. So is your unit in the attic or crawl space? I'm sorry. I have done that.