This article was submitted by Genry Garcia of Comfort Dynamics, Inc. It is the second part of his series on zonal pressure diagnostics. Thanks, Genry! In Part 1 of this series, we outlined the basic understanding of ZPD—what it means and what it does. Most importantly, we showed how an effort to simplify a fairly […]

This tip was written by a 19-year service tech, Frank Mashione. Thanks, Frank. Here is a tech tip from the field that had stumped me. Luckily for me, I knew the right person to call to get back on track. This business has complained about heat calls for quite a while. I have heard other […]

Service calls about condensing fan motor failure are quite common. Even though fan motor replacement is a standard procedure for residential split systems, it requires careful attention to safety and detail.  This article will give you a step-by-step guide to replacing condensing fan motors. Along the way, we will also explain a few best practices […]