See the photo above? This is a unit we (my company) serviced for a commercial customer. It doesn't matter if we aligned the belt, dialed in the charge, cleaned the condenser (using THIS thorough process), and got the drain pan clean. We look like dummies because the panel fell off. Also, as you may notice, […]

There are many great diagnostic tools available to the service technician today, but I haven't found a tool as versatile as the simple isolation diagnosis. There are many ways this concept can be applied, but let's start with some examples so that you get what I mean. Low Voltage Short Circuit Isolation Diagnosis You arrive […]

As HVAC/R Technicians, we use tools and instruments to take measurements every day. In fact, 90% of our job could not be done efficiently without some kind of measurement.  “How do we measure?” “With what instruments?” “How accurate are these measurements?” These are all questions a thoughtful technician should ask before spending money on a […]