i am currently working for a company in hvac/r. i have many times came to the site and seen your comments on trouble shooting and repairs, they also have came in handy when in the field. i only have 3 1/2 years experience excluding vo-tech. i belive in this field you are only as good as your teachers, advice and drive. with a website like this many people new in the industry can now proceed to better their skills. i will be asking many questions now that i have stepped up to more of the refrigeration part of the field.