Author Archives: macsworldwide

About macsworldwide

Mobile Air Conditioning Society (MACS) Worldwide Founded in 1981, MACS is the leading non-profit trade association for the mobile air conditioning, heating and engine cooling system segment of the automotive aftermarket. Since 1991, MACS has assisted more than 600,000 technicians to comply with the 1990 U.S. EPA Clean Air Act requirements for certification in refrigerant recovery and recycling to protect the environment. The Mobile Air Conditioning Society (MACS) Worldwide’s mission is clear and focused--as the recognized global authority on mobile air conditioning and heat transfer industry issues. www.macsw.org

Success in Seattle, MACS training class at Red Dot


MACS and MACS member RED DOT joined forces for a top shelf, high-value factory centered training event for the heavy duty and off-road vehicle mobile A/C technician this past Saturday, September 20th.  Acclaimed heavy duty A/C trainer, Blake Gordon of … Continue reading

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An R-1234yf update


By Steve Schaeber, MACS Technical Editor What will the new refrigerant be? That has been the most dynamic issue surrounding the future of the mobile A/C industry for the past few years. I recently had a conversation with MACS member … Continue reading

Posted in #1234yf, Automotive, Automotive Aftermarket, Automotive training, Mobile Air Conditioning, Refrigerants | Tagged , , , , , , , | Leave a comment

Blower motor draw


By Steve Schaeber, MACS Technical Editor Recently, I posted to the MACS WordPress blog and covered a fuse issue on a 1999 Volkswagen Jetta. In response to my post, I received a comment from reader Bruce Caron. Here’s an excerpt … Continue reading

Posted in Automotive, Automotive Aftermarket, Automotive training, Electrical/Electronic, Mobile Air Conditioning, Refrigerants | Tagged , , , , , , , | Leave a comment

A customer comes into my shop and says can you make me a hose?


As told to MACS Staff by Marks Air We received this story from MACS member Gordon Marks at Marks Air in Tampa, FL. Gordon is a frequent contributor to the MACS blog. A customer came in with his farm tractor … Continue reading

Posted in Automotive, Automotive Aftermarket, Automotive training, Electrical/Electronic, Mobile Air Conditioning | Tagged , , , , , , , , | 1 Comment

1999 VW Jetta – A/C Fuse # 25


By Steve Schaeber, MACS Technical Editor Technicians working on a third generation Jetta might find their A/C controls totally inop, including no blower fan operation amongst any of the fan speeds, and no operation of the A/C button or recirc … Continue reading

Posted in Automotive, Automotive Aftermarket, Automotive training, Electrical/Electronic, Mobile Air Conditioning, Refrigerants | Tagged , , , , , , , , | Leave a comment

What is the state of the mobile A/C industry?


State-of-the MAC Industry on Saturday, February 7, 2015 One of the programs during the 2015 MACS Training Event and Trade Show will feature  a luncheon presentation on Saturday,  February 7 with MACS technical advisor Ward Atkinson, who will explore the … Continue reading

Posted in #1234yf, Automotive, Automotive Aftermarket, Automotive training, Mobile Air Conditioning, Refrigerants | Tagged , , , , , , | Leave a comment

Do you know how to defend your repair turf?


You fix an air conditioning leak, recharge the system, and shortly thereafter the motorist is back, complaining that he turned on the A/C, the engine soon started to run rough and the Check Engine light came on and is still … Continue reading

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Registration is now open for MACS 2015 Training Event and Trade Show


Meet me @ MACS – Make Connections that Matter Registration is now open for the ultimate, total vehicle climate and thermal management, 3-day, live training event delivered by the best instructors in the business. The Mobile Air Conditioning Society (MACS) … Continue reading

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Become a member of MACS


If you’re an independent service shop owner performing engine cooling and mobile A/C service and repairs. Ask yourself who is backing you up everyday with resources like accurate technical information, the latest info on federal regulations for your business, a … Continue reading

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Sometimes, if it ain’t broke…


It’s easy for technicians to be misled by temperature and pressure readings, and what they think should be happening as a result of what they see. A high-mileage thirteen-year-old Mazda 626 isn’t cooling on an 85-degree day in New England. … Continue reading

Posted in Automotive, Automotive Aftermarket, Automotive training, Mobile Air Conditioning, Uncategorized | Tagged , , , , , , , , | Leave a comment