My heater went out in my 2 year old house and since Airtron was the company that installed it I called them. After about 6 hours gave me a diagnosis that didn't sit right with me since the tech had tried all possible workarounds. Looking for second opinions on the web and came across Champion AC the next day. They sent Gerald "the man" M. out and within 2 minutes he found the correct problem, bypassed it and gave my house heat. He ordered the part, came back and installed it, but ran into a problem. He stuck with it and didn't leave before he had it fixed (only took about an hour). Will ask for Gerald again.