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A Sure Sign Of A Restriction
January 24, 2023
By Richard Hawkins In the January 4th blog article, we covered a tech call that involved a customer who was experiencing an issue with the low side of an A/C...Read Article >
Deere allows farmers to repair their own equipment
January 22, 2023
by Steve Schaeber, MACS technical editor After years of debate, a memorandum of understanding (MOU) has been signed by the world’s largest farm machinery manufacturer. On January 8, 2023, Deere...Read Article >
Follow up on the 12/30/22 EPA virtual public hearing
January 12, 2023
By Steve Schaeber, MACS Technical Editor Let me start off by saying Happy New Year! to everyone, and here’s to a great 2023! Since many of you were on holiday...Read Article >
A Memorable Tech Call
January 4, 2023
by Richard Hawkins Happy New Year to everyone. Hope you all had a good holiday season. We will begin the year on something of a light note. I am sometimes...Read Article >
EPA proposes GWP limit for five MVAC subsectors
December 22, 2022
By Steve Schaeber, MACS Technical Editor The mobile air conditioning industry has, so far, used R-1234yf refrigerant primarily in passenger vehicles and light duty trucks. Although MACS has reported on...Read Article >
Too Many Compressors
December 20, 2022
The blog article published on November 8, 2022, focused on understanding the importance of knowing the precise location of service ports when faced with a challenging A/C diagnostic issue. It...Read Article >
Understanding and Diagnosing A/C
November 14, 2022
In the Understanding and Diagnosing A/C class, you'll go beyond minimum requirements for recovery, evacuating, recharging, and recycling by offering real world examples in diagnosing and repairing A/C electrical, computer / BCMs, climate control and electronic components. Most of today’s vehicles come equipped with electronically controlled A/C systems.Read Article >
Selection of the Proper O-Ring for Your MAC Application
November 9, 2022
Did you know the selection of the proper O-ring for your MAC Application can have a major result on your A/C repair?Read Article >
The pressure readings
November 8, 2022
Sometimes when confronted with a challenging problem with an A/C system, the pressure readings might not seem to conform to the way the system is performing. Also, pressure readings might indicate that a component needed to be replaced and after replacement the system did not perform any differently.Read Article >
Interior Heating Evolution
November 1, 2022
In the last 120 years, automotive passenger heating has evolved dramatically from open carriage-type automobiles with little occupant protection from the elements to complex electric vehicle (EV) heating, ventilation, and air conditioning (HVAC) systems.Read Article >
North American Vehicle and Consumer Trends
October 28, 2022
A look at the latest population trends for light vehicles in North America. Presenters will provide insight on replacement rates for popular A/C products and talk about the changing trends in engine size, vehicle segments, electrification, and more.Read Article >
Electric Compressors, EV System Enhancements and Heat Pumps
October 26, 2022
EV and hybrid manufacturers are searching for every yard/meter of range they can squeeze out of their vehicles. In the race to get their newest offerings into the driveways of consumers, range is a major factor. HVAC can severely effect vehicle range, and engineers are doing everything possible to reduce the impact of this creature comfort/necessity.Read Article >
