Air contamination in an A/C system can ruin your day
February 2, 2022
I had a memorable encounter with air contamination in the mid 1990s. I was conducting a lot of retrofit clinics at the time and had recently acquired a demo refrigerant identifier which I took to those clinics. At one clinic, there was a technician who was extremely interested in the refrigerant identifier.Read Article >
MACS changes leadership
January 31, 2022
MACS is changing leadership. Elvis L. Hoffpauir, is stepping down at the end of January 2022 from his duties as MACS president and chief operating officer to enjoy retirement. Following a 42-year distinguished career at the Mobile Air Climate Systems Association (MACS), Elvis will transition to past president and association advisor.Read Article >
Variable output scroll compressors
January 5, 2022
This compressor has been around for quite some time and the vehicles it is used on are getting some age on them. However, they still show up in shops with regularity and there still seem to be a lot of technicians that are not aware of the problem, diagnostic procedure and cure.Read Article >
Meet MACS member, Tom Lech
November 8, 2021
Stationed in San Francisco, California, Thomas Lech has maintained a bustling business for almost three decades. Lech Auto Air Conditioning has been busy for 365 days a year from opening at 7 a.m. to closing at 7 p.m. for the last 27 years, with summertime only increasing the demand for the shop’s services.Read Article >
Airsept, Burgaflex and Sanz Kenway honored for MACS Trade Show best new products
October 7, 2021
Three MACS member companies received honors for their new products introduced at MACS 2021 Trade Show, October 1st at the Rosen Centre Hotel and Convention Center in Orlando, FL.Read Article >
Don’t try this at home
October 6, 2021
Don't try this at home! We do not recommend adding a machete to your mobile A/C tool kit. However, in Belize they do things differently. Sometimes necessity is the mother of invention.Read Article >
Thank you 2021 MACS Training Event Attendees
October 4, 2021
Thank you to all the attendees who travelled to Orlando, FL for MACS 2021 Training Event and Trade Show.Read Article >
Back to school bus A/C
September 1, 2021
Since it’s September (and another school year is upon us), we’re going to look at what’s so different about school bus A/C as compared to the more common automotive-type systems.Read Article >
Who are MACS future leaders?
August 27, 2021
Nominations are now open for the 2022 MACS board of directors’ election. Are you ready to get involved and help shape MACS for the future?Read Article >
MACS Service Reports: a valuable member benefit
July 9, 2021
The MACS Service Report is a valuable MACS member benefit. Published nine times annually for dues-paying MACS members, MACS Service Report is an in-depth technical newsletter.Read Article >
Do you have the essential tools for success?
May 17, 2021
Using the correct tools to service and repair vehicles is so important that the Society of Automotive Engineers (SAE) creates standards for some service tools to meet. Requirements for their use by service professionals is included, as well. Some examples include refrigerant recovery and recycling machines, refrigerant identifiers and leak detectors.Read Article >
Pass the temperature probe
May 4, 2021
The first step is to run the A/C system for a few minutes to let it stabilize. Then both probes should be connected side by side at both points that will be temperature tested in the system. For example, if you were testing the temperature drop across the condenser, this would need to be done on both the discharge line and the liquid line.Read Article >
