In order to wrap my head around diagnostic issues, it helps me engage in thought experiments where I think of more extreme examples of an issue or situation or consider the ideal to find the “edges” of a concept. Once I find the extreme edges, I can begin to sort down to a more exact […]

Suppose you have two extension cords. One is a nice, thick #10 50′ cord with good ends, and the other is a crappy #14 25′ cord. Unfortunately, you need to connect them both to get to your drill 75′ away. Which do you connect to the plug, and which to the drill? Come up with […]

This article is written by a regular contributor, experienced rack refrigeration tech, and RSES CM Jeremy Smith. Thanks, Jeremy. Also, there is a podcast out about what kills compressors HERE. A technique that you can use to diagnose compressor problems and help differentiate them from other possible issues is compressor performance analysis. Manufacturers do extensive […]