I have a small carpet cleaning business in east Texas. I have had a Performer 405 for about 8 years, it is my only piece of equipment and has been great. I have started a pretty steady stream from my heat exchanger exhaust. I called the place in Dallas where I took it before but they can't get the coil from ProChem anymore. He said if I had the part they would be happy to work on it. Anybody have any advice for me. Thank you!