As an A/C tech, I can sometimes get the terms “defrost termination” and “defrost fail-safe” mixed up because they sound pretty similar. Before we cover these terms, let's set the basic defrost groundwork for refrigeration (coolers and freezers). Defrost is accomplished in one of a few ways; these first two only apply to “coolers” where […]

I'm not sure who first started calling evaporator coil odors “dirty sock syndrome,” but I really wish they hadn't. Nowadays, every tech out there can't help but categorize every odor from the system as “dirty sock syndrome,” and customers just LOVE to hear that they have a “syndrome” named after a dirty locker room smell. […]

First, I want to give credit where credit is due. This post is made possible by the fantastic demonstration video by Neil Comparetto that I embedded below. Before you get bored and stop reading, I want to get the conclusion out in the air. Ice can form in a vacuum, but I still advise pulling a […]