Joseph C. Henderson Archives

Joseph C. Henderson

Company name: Hvac Consulting Services, LLC

Position: President

Joseph “Joey” Henderson has been an HVAC instructor at Midlands Technical College for over 30 years and has served as the Program Coordinator for HVAC for the last 6 years. He is also the president of his education and consulting company, Hvac Consulting Services, LLC, and is known for providing quality HVAC education to people at all stages of their careers while cultivating an energetic learning environment.

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Heat Pump Defrost Troubleshooting Tips

We’ve entered that season of service calls for “smoking heat pumps,” and I figured now is as good a time as any to share a few quick tips for troubleshooting defrost. Of course, the “smoking heat pump” calls can be solved over the phone with a quick explanation of normal defrost conditions—as can the service […]

What Should My Subcooling Be?

This is the article you read BEFORE you call and ask a senior tech what your subcooling should be. It's also the one you send to a junior tech when they call and ask you: So, what is subcooling? (Or subcool, as many call it.) Subcooling is a measurement of the temperature DECREASE of a […]

Isolation Diagnosis

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 […]