As I read posts and comments within social media HVAC groups regarding indoor air quality or IAQ it is clear that most technicians are focused on clean, healthy homes for their custumers and their own families.  The main discussion revolves around filtration systems, temperature, humidity and air purification.  There is…

To some HVAC technicians, replacing hose seals or gaskets is actually a foreign concept, hose maintenance you say?  Hose maintenance is an integral part of successful day to day service and installation.  If hose seals become compressed or broken, we can have leaks while testing or evacuating, I have also…

During my career I have come across many pulleys, shafts, blower wheels and bearings that have come loose due to improper set screw tightening, sadly a lot of this equipment was brand new or close to new.  On some larger equipment or equipment that may be susceptible to excessive vibration,…

As a commercial tech, I have worked on many models and types of rooftop equipment.  One major problem I have noticed over the years is panels not staying put, sometimes it's the fault of the tech forgetting to fasten the screws.  Sometimes it's due to stripped screws that go unnoticed…

Tip: Preparing Wires For Twist On Connectors  By: Gary McCreadie Have you ever come across twist on connectors that have fallen off or when you twist them on, some wiring breaks off inside and leaves the connector useless?  The following video demonstrates a sure fire way to ensure the wires stay intact.  Some techs…