I just have to blow some steam off. Some of you professional HVAC'er really have it out for the Do It Your Selfers. Almost every day some DIY get's butchered for asking a HVAC question (see Stramell's thread below). Let me tell you this. We DIY's have been DRIVEN to this site and other HVAC sites for information because we've been getting screwed over by the HVAC "professionals". Personally, I own a total of 5 split systems in three separate houses spread over 230 miles. I don't have the time to work on all the things that break in these houses. Plumbing, electric, handyman things are fixed easily by professionals. But when time after time HVAC "professionals" are telling me "you need a new compressor", "your 2 pounds of freon low but it's such a small leak we'll never find it", "you need a totally new system" I'm going to check it and fix it myself if possible (it's usually just a cap. or dirty contacts). Some of you guys need to spend less time worrying about the DIY's and more time worrying about how to weed out all the incompetent/crook tech's. It's not the few DIY's that are eating into your business. It's the "used car salesman" reputation some HVAC tech "professionals" are giving your service industry that make people scared to look in the yellow pages for HVAC service. Now I feel better.