MACS Board of Directors

Agnes A. Perez

MACS Treasurer

A distinguished professional with over 20 years of experience in automotive air conditioning systems and electric vehicles. She holds an Automotive Technician license as well as a Bachelor’s degree and an MBA in Marketing. As the founder of Mecanea tu Día, an educational platform providing seminars, workshops, and certifications, Agnes addresses the modern needs of automotive technicians, focusing on electrification, HVAC systems, and operational management. Her leadership at Auto Air Parts of Puerto Rico has positively impacted over 2,500 mechanics and students. She has also served two terms on the MACS board, contributing significantly to the organization’s development. For her dedication, Agnes has been honored with the Leadership Award Robert Belman Memorial and the Ambassador Award.

Pam Oakes

Instructional Content Designer, MACS | SME Consultant, autoINENG.io | MACS Secretary

Pam, an SME Consultant at autoINENG.io, provides automotive training at all levels, including train-the-trainer, professional technicians, and scholastic programs. With over 20 years of hands-on experience running a 12-bay shop in Florida, she specializes in HVAC training, EPA regulations, and refrigerant conversions.

A designated MACS/EPA-609 instructor and test proctor since 2016, she has developed ASE-A7 test prep programs and contributed to ASE exam updates. Additional expertise includes ADAS calibration, fleet training, and technical curriculum development for major corporations. An ASE Master Technician with certifications across automotive, HD truck, and collision repair, [Name] is also a member of SAE and the National Science Foundation’s NCAT committee. In addition to automotive expertise, she holds degrees in English, Electronic Engineering Technology, and Cybersecurity, with multiple industry.

Pam has joined MACS as an Instructional Content Designer, where she will lead training initiatives and provide strategic guidance to support the association’s educational goals.

MaryJo VandenBrink

Engineer & Business Development Manager at Honeywell – Vice Chairman

Mary Jo VandenBrink is an Engineer working as a Business Development Manager for Honeywell.  Known to many as “MJ”, most of her career has been working in the automotive compressor business at Denso, Sanden, General Motors and Stellantis, before moving to Honeywell. Honeywell has been an active member of MACS for almost 30 years, and since moving to Honeywell I have participated in MACS and I also currently serve on multiple SAE committees. I understand that the HVAC industry is rapidly changing, and I am committed to serving MACS to the best of my ability.

Aaron Becker

Owner & President of AirSept, Inc. – MACS Chairman

Aaron has spent over 30 years in the mobile HVAC industry, specializing in developing and manufacturing innovative service solutions for complex automotive repair challenges. Since becoming president of AirSept in 2001, he has led its growth from a small family business to a global Tier 1 and Tier 2 supplier for 18 vehicle manufacturers and major aftermarket companies.

A dedicated MACS member for 26 years, Aaron also serves on multiple SAE committees. His extensive experience collaborating with OE engineers, manufacturers, and distributors provides valuable insight to MACS members. As mobile climate control technology evolves, he remains committed to advancing education and innovation in the industry.

Andy Fiffick

Founder and CEO -Rad Air Complete Car Care & Tire Centers- Past MACS Chairman and CEO

A lifelong “gear-head”, Andrew’s career started at the early age of six, when he fell in love with cars while helping his father work in his garage. His dad was a diesel truck mechanic and taught him to do things right the first time—a lesson he learned well and practices to this day. He attended the Lincoln Technical Institute and Marketing Baldwin Wallace College. He’s now the President & CEO of Rad Air Complete Car Care and Tire Centers as well as Cleveland Hybrid, which has ten service centers in the Cleveland, OH area.

He loves boating, Harley rides with his wife Elissa, and enjoys time with their two daughters, two sons-in-law, and four grandchildren. He’s now served on the MACS board for 22 years, serving as Chairman since 2007.

Tim Iezzi

Owner of Iezzi’s Auto Service

Tim Iezzi is the third generation owner of Iezzi’s Auto Service in Reading PA.  Tim holds a Bachelors degree in Engineering from Elizabethtown college and is a registered engineer in training in PA.  Tim is an ASE Certified Master Automotive technician, holds all 4 advanced level specialist certifications, is a certified service consultant, parts consultant, undercar specialist and has served as a Subject Matter Expert for the ASE A7 exam.  Tim also is a PA state certified safety inspection mechanic, emissions inspector and emissions repair technician.  Tim teaches part time for Carquest Technical Institute and has taught classes for MACS.  Tim previously served one term on the MACS board of directors and previously served in the AASP-PA house of Delegates.

Caroline Marks

Vice President, Co-Owner, Director of Operations-Marks Air, Inc.

Caroline grew up in this industry (literally—she’s been around this since she was in a playpen). At the beginning of 2000, she started as a full-time member of the Marks Air team, which is an A/C-only service shop that also distributes A/C parts worldwide. Before that, her experience concentrated on customer service and the customer experience. She currently serves on the advisory board for Erwin Technical College and the Diesel Program for Hillsborough Community College. She’s also a 609 proctor and have been serving on the MACS board for five years.

Caroline is a soccer mom of two teenage daughters and she loves exercise, yoga, Star Wars, Beastie Boys, good conversations, the beach, motivating others and learning. She’s also a history nerd and book worm. Pizza, red wine and guacamole are some of her major weaknesses (though not normally all at the same time). Out of all the things Caroline loves, smiling is her favorite.

Andy Fiffick

Founder and CEO -Rad Air Complete Car Care & Tire Centers- Past MACS Chairman and CEO

A lifelong “gear-head”, Andrew’s career started at the early age of six, when he fell in love with cars while helping his father work in his garage. His dad was a diesel truck mechanic and taught him to do things right the first time—a lesson he learned well and practices to this day. He attended the Lincoln Technical Institute and Marketing Baldwin Wallace College. He’s now the President & CEO of Rad Air Complete Car Care and Tire Centers as well as Cleveland Hybrid, which has ten service centers in the Cleveland, OH area.

He loves boating, Harley rides with his wife Elissa, and enjoys time with their two daughters, two sons-in-law, and four grandchildren. He’s now served on the MACS board for 22 years, serving as Chairman since 2007.

Rob Bollinger

Part Owner-ABC Radiator

My name is Rob Bollinger, part owner and operator of A.B.C. Radiator and A/C located in Baltimore, Maryland. I have been working on automotive and heavy-duty A/C systems for over 20 years. A.B.C. Radiator and A/C is a family business which was started by my grandfather in 1970.

We provide the sales, service, and installation of all forms of transportation. Fun fact: we are the last place in Baltimore City to still repair are core radiators! We are the “best place in town to take a leak”. Coming from a family business gives me great pride in the work I do, and I am grateful for the relationships made over years with our customers and the local businesses.

Outside of the shop I am with my family… I have a beautiful wife and three amazing kids. In the morning while the family is still sleeping you can find me in the gym weightlifting. (It’s the best way to start the day!) In 2020 I was very happy to receive the young ambassador award at the training and convention show in Nashville. I hope to continue to be involved with the MACS organization for many years to come. Being a member has been a great asset to my company.

G Truglia

Curriculum Developer and Instructor, Automotive Technician Training Services (ATTS) | Director of Training, Dorman Training | Founder and President, Service Technicians Society (TST)

Jerry Truglia, better known as just “G”, has extensive experience in the automotive field as a technician, service manager, shop owner and technical writer. He is the owner, curriculum developer and instructor for Automotive Technician Training Services (ATTS) in Mahopac, New York and now Director of training for Dorman Training, Founder and President of the non-profit Service Technicians Society (TST). As a senior curriculum developer who provides training programs for automotive and truck inspection and repair programs, “G” has provided on-board diagnostic system, OBDII and automotive training all over the country. Having authored, co-authored, or served as a technical advisor for over 25 educational books, “G” has worked extensively with MACS, NASTEF, SAE, EPA, ASE, and other organizations to educate our industry. With decades of well-rounded experience, “G” understands the needs of educators, shop owners and technicians. As one of the few ASE World Class Triple Master Technicians in Auto, Truck & Bus, “G” brings decades of knowledge and understanding of our industry that will be invaluable to move the Mobile Air Climate Systems Association forward.

Peter McArdle

Following a thirty-year career with Standard Motor Products, Peter recently retired as a sales and technical instructor and content developer at the company’s corporate training center in Irving Texas. He has participated in several ASE test writing workshops for air-conditioning and has presented at the MACS annual training event for almost twenty years.

On moving to the training center, many of the challenges facing the aftermarket due to the difficulties associated with the industry transition from R-12 to R-134a were at their peak. It was apparent that repairing R-134a systems successfully was a much more exacting science. Developing new and persuasive training content that addressed these new challenges that could be shared with the industry at scale was imperative. Insights gained during this turbulent period enabled Peter to provide valuable input in both product and tool development.

Peter hopes that his experience developing and delivering training content and understanding the firsthand experience of technicians repairing automotive air-conditioning systems can help him provide relevant input to the board in the area of technician education.

Alan McAvoy

Technical Training Manager, Stellantis (Retired)

Mr. McAvoy is the Technical Training Manager for Stellantis, overseeing five Technical Training Centers that support dealership technicians, corporate personnel, educational institutions, and fleet accounts. With over 40 years in the automotive industry, he has held roles as a service technician, instructor, curriculum developer, and training manager.

A member of MACS and SAE since 1985, he has presented at MACS, ATRA, and SAE conferences on Chrysler transmissions, diagnostics, and new product launches. He has contributed to Chrysler training curriculum and led international training programs, including the Master Technician program in Australia. An ASE Certified Master Technician with L1 Advanced Engine Performance and Chrysler Master Certifications, he holds an A.S. in Automotive Service and a B.S. in Technical Education from Ferris State University.

Pam Oakes

Instructional Content Designer, MACS | SME Consultant, autoINENG.io | MACS Secretary

Pam, an SME Consultant at autoINENG.io, provides automotive training at all levels, including train-the-trainer, professional technicians, and scholastic programs. With over 20 years of hands-on experience running a 12-bay shop in Florida, she specializes in HVAC training, EPA regulations, and refrigerant conversions.

A designated MACS/EPA-609 instructor and test proctor since 2016, she has developed ASE-A7 test prep programs and contributed to ASE exam updates. Additional expertise includes ADAS calibration, fleet training, and technical curriculum development for major corporations. An ASE Master Technician with certifications across automotive, HD truck, and collision repair, [Name] is also a member of SAE and the National Science Foundation’s NCAT committee. In addition to automotive expertise, she holds degrees in English, Electronic Engineering Technology, and Cybersecurity, with multiple industry.

Pam has joined MACS as an Instructional Content Designer, where she will lead training initiatives and provide strategic guidance to support the association’s educational goals.

MaryJo VandenBrink

Engineer & Business Development Manager at Honeywell – Vice Chairman

Mary Jo VandenBrink is an Engineer working as a Business Development Manager for Honeywell.  Known to many as “MJ”, most of her career has been working in the automotive compressor business at Denso, Sanden, General Motors and Stellantis, before moving to Honeywell. Honeywell has been an active member of MACS for almost 30 years, and since moving to Honeywell I have participated in MACS and I also currently serve on multiple SAE committees. I understand that the HVAC industry is rapidly changing, and I am committed to serving MACS to the best of my ability.

Aaron Becker

Owner & President of AirSept, Inc. – MACS Chairman

Aaron has spent over 30 years in the mobile HVAC industry, specializing in developing and manufacturing innovative service solutions for complex automotive repair challenges. Since becoming president of AirSept in 2001, he has led its growth from a small family business to a global Tier 1 and Tier 2 supplier for 18 vehicle manufacturers and major aftermarket companies.

A dedicated MACS member for 26 years, Aaron also serves on multiple SAE committees. His extensive experience collaborating with OE engineers, manufacturers, and distributors provides valuable insight to MACS members. As mobile climate control technology evolves, he remains committed to advancing education and innovation in the industry.

Alan Leupold

Technical Consultant-Bergstrom Climate Controls Systems

Alan graduated from Valparaiso University in 1971 with a BSME. In 1973 he began his engineering career with International Harvester in the test lab to analyze HVAC systems. He progressed through the years to become Global manager of HVAC design.  In 2012, he left CNH to become the Director of Test and Development at Bergstrom.  He now is a Technical Consultant for Bergstrom and is a member of ASABE, SAE and ISO Committees. He holds 14 patents for Off Road HVAC systems and has received 2 SAE achievement awards and the MACS Pioneer award. He has been active with MACS since 1995 and a board director the past 8 years.

He is active in his community and served as township trustee for 8 years.  Alan and Penny have been married 50 years and have 2 daughters and 3 grandchildren. They enjoy boating, warm/sunny vacations, sports, and farm toy collecting.

Charlie Roberts

Director of Sales-TCCI Manufacturing LLC.

Charlie Roberts is the Director of Sales at of TCCI Manufacturing handling OE truck, off-road, transport refrigeration and bus markets. He joined TCCI in 2006 and has been instrumental in transforming the business resulting in more than 300% growth in sales and launching over 20 new products in the last six years including the electric compressor.

Charlie has been affiliated with MACS throughout his 29 years in the HVAC mobile industry. Charlie is honored to have served on the MACS Board of Directors for the last four years being reelected for two more years and has been an integral part of leading MACS successfully through their re-branding efforts, advancing technology, growing membership, and weathering the pandemic challenges.

Charlie is a graduate of Stephen F. Austin State University and resides in Frisco, TX with his wife of over 29 years and has two children.