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The concept of superheat

October 19, 2021

We illustrated the concept of superheat in last week's article by boiling water and superheating steam in a moonshine still. This week we will apply this concept to refrigerant in an air conditioning system.  The still has been replaced with an evaporator. 
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Over 500 automotive scholarships available

October 14, 2021

The University of the Aftermarket Foundation (UAF) is now accepting scholarship applications for the 2022-2023 school year on its Automotive Aftermarket Scholarship Central website. Scholarships from UAF and more than 40 donor organizations are consolidated and easily accessible at AutomotiveScholarships.com.
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Understanding and troubleshooting data lines on heavy-duty trucks

September 23, 2021

Understanding and Troubleshooting data lines on heavy-duty trucks will be presented byLarry Turay of LETCO Enterprises. In Larry’s Saturday morning class, attendees will learn how components and subsystem inputs and outputs can influence HVAC operations. 
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Facts to know about the compressor clutch coil

September 7, 2021

Checking the clutch air gap before installing a compressor is an important step in compressor installation. This is because of the possibility of a clutch air gap getting knocked out of adjustment due to rough handling or it being gapped incorrectly at the factory.  These issues of course can cause problems with clutch operation.  If detected and corrected before compressor installation, a lot of time can be saved.
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The Humble Mechanic wants to see you at MACS

September 2, 2021

Charles Sanville, better known as the Humble Mechanic is MACS Keynote Speaker. Come see Charles on Thursday, September 30 at 11:30am at The Rosen Centre Hotel in Orlando, FL.
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Back to school bus A/C

September 1, 2021

Since it’s September (and another school year is upon us), we’re going to look at what’s so different about school bus A/C as compared to the more common automotive-type systems.
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Mind the compressor clutch gap

August 31, 2021

One of the first things I was taught in my A/C training was to always check the clutch air gap prior to installing a compressor. 
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Two clues to a condenser’s identity

August 24, 2021

There are two steps to determining what type of condenser is in a vehicle.
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What type of condenser is in that vehicle?

August 17, 2021

What type of condenser is in that vehicle? It's a frequent question in the mobile A/C industry.
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Mysterious servicing issue in R-1234yf systems

August 11, 2021

Recently a 2017 R-1234yf Honda system, with 72,099 miles, encountering a loss of cooling (slow leak) over time would not pass the equipment charge procedure and the production amount could not be charged. 
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