Heat blowing cold on a Rheem RCBA3765AS17
My Rheem central heat and air is not working. Most important now is the heat. The heat comes out, but the air blows cold. Before I spend the money for an expensive expert... is there any hope of me fixing it myself... or doing some checks so I have an idea what is wrong to save time and money if the technician has to be called in. I'm pretty handy and can follow directions. I have no owners manual... any idea where I might find one on line. Thanks in advance... Freezing in Fort Lauderdale.