Are you making the most of your equipment?
April 30, 2019
Independent garages have been slow to make the investment in equipment to work on R-1234yf systems, and many car dealers’ service departments couldn’t be happier about that. When the car...Read Article >
Are you ready for A/C season?
April 10, 2019
Reviewing the fundamentals: Pressures We started out with a brief review of A/C system pressure testing order to build up to the major point of the class which was the...Read Article >
Do you know how to find coolant leaks?
February 28, 2019
Finding Coolant Leaks Some days, around this time of year, it feels like all we do is chase down coolant leaks. Maybe that has something to do with weather patterns...Read Article >
2018 MACS Service Information Survey
October 1, 2018
The Mobile Air Conditioning Society (MACS) was organized to serve the mobile air conditioning industry. MACS’ charter and mission are communication and education. To achieve these goals, the Society has...Read Article >
Do you know your HVAC components?
August 30, 2018
The first part of any good under-hood inspection should include a label check. The labels below provide us with refrigerant charge specifications to correlate to the OE specifications found...Read Article >
Are you ready for A/C season?
June 1, 2018
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...Read Article >
The time for mandatory Section 609 recertification is now
May 3, 2018
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,...Read Article >
Seeking yf
April 30, 2018
By Steve Schaeber, MACS Manager of Service Training MACS has been tracking refrigerant use by vehicle manufacturers for quite some time and, as expected for the 2018 model year, we...Read Article >
Our struggle with compressor oil
December 31, 2017
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...Read Article >
Should I stay or should I go?
December 11, 2017
By Andy Fiffick, MACS Chairman and CEO and President Rad Air Complete Car Care I know the value of a dollar – I couldn’t be in business otherwise – but...Read Article >
Can you afford the fines for not complying with Section 609 certification?
September 21, 2017
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...Read Article >
A technician’s approach to HVAC diagnosis and testing
August 31, 2017
Twenty years ago, we could break down all areas of HVAC diagnostics into three categories when you really think about it. It was and still is called Heating, Ventilation, and...Read Article >
