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What is the proper refrigerant charge for this A/C system I’m working on?

September 11, 2023

By: Richard Hawkins, MACS Contributor That is a question that comes up countless times when doing mobile A/C work.  When working on a car, light truck or SUV, it is...
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Male mechanic inspecting inside a car hood

EPA Set to Issue NPRM on AIM ACT Refrigerant Reclamation

September 7, 2023

The US EPA is set to issue a Notice of Proposed Rulemaking (NPRM) by September 30, 2023 in accordance with the requirements of the US AIM Act 42 USC 7675...
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90% of Leadership is Showing Up, The Other 10% is…

August 25, 2023

By Aaron Becker, AirSept President I have heard often that 90% of leadership is showing up, but I never heard anyone say what composes the remaining 10%.  I propose that...
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AMRA to hold Winter MAP Technical Conference at MACS Annual Training Event

June 27, 2023

MACS is pleased to announce the upcoming AMRA Winter MAP Technical Conference will take place January 30 – 31 in conjunction with the 2024 MACS Training Event and Trade Show...
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Recycle vs Reclaim

May 17, 2023

By Steve Schaeber, MACS Technical Editor MACS member shops (and in fact, almost every repair shop in the country that services mobile A/C systems), have been servicing those systems the...
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Refrigerant Deja Vu

May 8, 2023

by Richard Hawkins, MACS Contributor Lots of changes since the 80’s If you have been associated with mobile Air Conditioning since the late 1980s, you have witnessed a lot of...
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Long exposure of car driving down highway

Avoiding Expansion Valve Woes (Part 2)

April 4, 2023

by Richard Hawkins This is part 2 in a series of articles about avoiding expansion valves woes.  If you have not already read the 1st. article, it can be found...
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Avoiding Expansion Valve Woes (Part 1)

March 21, 2023

By Richard Hawkins On March 2nd, an article was published in this blog covering a class that was held at the recent MACS Training Event and Trade Show.  The class...
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EPA Stakeholder meeting is scheduled for March 16, 2023 

March 16, 2023

EPA is holding a stakeholder meeting on Thursday, March 16 at 11am (EDT) on the reclamation of HFCs (hydrofluorocarbons) in the United States. This meeting is being held pursuant to...
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Training Event Tech Session Wrap up (Part 2)

March 5, 2023

By Richard Hawkins There were quite a few good classes presented at the 2023 MACS Training Event and trade show held in Nashville, TN on February 2nd through February 4th....
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Training Event Tech Session Wrap up (Part 1)

March 2, 2023

By Richard Hawkins There were some great classes presented at the 2023 MACS Training Event and trade show held in Nashville, TN on February 2nd through February 4th.  Starting with...
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A Sure Sign Of A Restriction (Part Three)

February 28, 2023

By Richard Hawkins, MACS Technical Writer This is part three in a series of articles about restrictions in A/C systems. If you have not read the two previous articles, they...
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