Calaway Heating & Air Conditioning checked both furnaces and there was a cracked igniter in one furnace, so they replaced it and that was it. It turned out real good. I would continue to call them because I'm satisfied. They were prompt, friendly and did good work--and that's what matters. Scheduling is really easy and they are quick in getting to me. I've lived down here for 8 years and I've had them out twice. Calaway Heating & Air Conditioning is the very best.