This article is written by longtime tech Shaun McCann sharing his experiences with a big problem in our trade. Thanks for this, Shaun.  I started in the HVAC business working for a small commercial union shop in the late '80s. I left that job within a year and worked in the bar and restaurant business […]

Service valves are so basic, and we see them with such regularity that we can miss them altogether. Before I give the tips, I want to address the tech who tells the customer it was “probably the service valve” or “the caps were loose” as a plausible reason for a leak without actually making a […]

One of my techs (Jim Walch) brought another common “double trap”-style issue to my attention: techs and installers running a drain too far into a condensate pump. When you run the system drain too deep into the pump reservoir, the water level can rise high enough to cover the drain end. That can create the […]