Over the years, I have heard technicians say that refrigerant can wear out or “lose its blend” by sitting in a tank. Refrigerant does not wear out or “lose its blend”… at least not like that. What can and does happen is called “fractionation.” Refrigerant blends are composed of a mix of refrigerants with different […]

First off, if you've never heard the term “beer can cold,” you are either not in the trade, or you have been living a pretty sheltered existence. I started as a tech apprentice when I was 17 years old, and on my first day in the truck, my trainer grabbed the suction line of a […]

The term “short” has become a meaningless phrase in common culture to mean “anything wrong with an electrical device.” A short circuit is a particular fault that can mean one of two things in technical lingo: 1. Any two circuits that are connecting in an undesigned manner This issue would be the case if a […]