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06Jun

June ACTION 2019 Hybrid and electric vehicle air conditioning compressor hardware, power controls and diagnostics For more than 15 years, hybrid and electric vehicles have been using electric air conditioning…

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06Jun

This is the MACS blog site if you are looking for the MACS main website click here. Repair shops – one question: Are you prepared for A/C season 2018? Circle…

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05May

The new refrigerant purchasing rules that took effect January 1, 2018 have had service shops, distributors and the MACS office in an uproar. At the MACS office, the faxes, emails,…

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12Dec

January February 2018 ACTION Magazine One of the most troubling situations a shop technician faces is not being able to find critical service information needed to properly diagnose and repair…

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09Sep

The MACS office has received some questions recently on fines for violation of Section 608 and 609 noncompliance. Here are some answers: EPA assesses penalties for violations on a case-by-case…

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09Sep

The blower motor can make or break HVAC performance. Solid blower motor troubleshooting, along with an attention to detail, will help ensure that your customer’s HVAC system performs properly, the…

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08Aug

By Steve Schaeber, MACS Technical Editor On August 8, 2017, a US District Court of Appeals reversed a 2015 EPA rule which removed R-134a from their SNAP list of acceptable…

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11Nov

By Ward Atkinson and Bill Hill  Note: The information in this article is the current overview as collected by Ward Atkinson and Bill Hill from industry and regulatory sources. It…

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10Oct

By Steve Schaeber, MACS Technical Editor GM was the first manufacturer to sell a vehicle in the United States that uses the new R-1234yf refrigerant when they came out with…

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09Sep

September/October 2016 ACTION Magazine The September/October 2016 issue of award-winning MACS ACTION Magazine is now ready for viewing! Everything you always wanted to know about mobile A/C hose applications but…

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