Get the scoop on FCA vehicle mobile A/C systems at MACS 2020 Training Event

Al McAvoy of Fiat Chrysler will provide MACS 2020 Training Event attendees with a comprehensive update of the status of Mobile A/C systems in Fiat Chrysler vehicles including the Jeep Gladiator pick-up.

FCA was the first OEM to implement widespread use of R-1234yf A/C systems, and for 2020 virtually all Chrysler, Dodge, Jeep, Ram, Fiat and Alfa Romeo vehicles use “yf” refrigerant. This training session will discuss new technology, chillers on the PHEV Pacifica and Challenger and other system changes including proper diagnosis and service of these vehicles, R-1234yf compressor applications along with recommended oil fill and type and the new 48-volt systems. Including an update on the Waymo/Pacifica hybrid autonomous vehicle project.

To view MACS program and register for MACS 2020 Training Event click here

Posted in Uncategorized | Leave a comment

14 heavy duty and off-road mobile A/C training classes scheduled for MACS 2020 Training Event and Trade Show in Nashville

Beginning Thursday, February 20 and continuing to Saturday, February 22 MACS will feature 14 different speakers offering training presentations on heavy duty and off-road mobile A/C service and repair These presentations are an integral part of MACS 2020 Training Event and Trade Show.

Here’s the line-up of trainers focusing on trucks and off-road vehicles:

John Wagner, Association of Equipment Manufacturers<
Dan Spurgeon, CAT
Sherwood Wheeler, AGCO
Paul Krug, Komatsu
Yevgeniy Beygel, Bergstrom
Robert Bassett, Gates
Erik Huyghe, T/CCI
Aaron Clark, EATON
Gene Dianetti, Parker Hannifin and Mike Milliman, SMP, Four Seasons
Jerry Lemon, Eberspaecher
John Finn, Diamler
Eric Weiss, Mobile Climate Control
Larry Turay, LETCO Enterprises

Click here to view the entire MACS 2020 Training Event program.

Click here to view the MACS website. Call the MACS office at 215-631-7020 X 0

Posted in Uncategorized | Leave a comment

Does your counterperson know how to sell an A/C repair job?

If not, you need to sign them up for Tim Iezzi’s course, “Counterperson A/C Training,” to be presented at MACS 2020 Training Event, February 19-22, 2020 in Nashville, TN

When it comes to servicing mobile A/C systems, it’s not just the service technician that needs proper training for the job to go well. Your parts counter staff also needs to know what are the various parts, how do they work, and where do they go on the vehicle. Tim Iezzi, shop owner and lead technician at Iezzi’s Auto Service knows all too well how important it is to have knowledgeable sales staff help with getting the right parts on time. Join Tim as he explores these topics and more!

For all the information you need to register for MACS 2020 Training Event and Trade Show visit or call the MACS office at 215-631-7020 x 0. MACS webiste is located at

Posted in Uncategorized | Leave a comment

Do you know all you need to know about compressors?

Understanding Compressor Design and Functional Differences                                                                                                      
With RICHARD HAWKINS 1-800-Radiator and A/C Thursday, February 20 at 8am

Compressors vary widely among the different vehicle platforms and even some specific models use compressors from different manufacturers. Not all of these operate the same way, which is why it’s important for technicians to be able to spot the differences. From electronic to manual controls and pistons to scrolls, join Richard Hawkins, technical administrator for 1-800-Radiator and A/C for an in-depth look at what makes these compressors so different, and how this knowledge can help along your diagnostic journey.

Register for this class and more at MACS 2020 Training Event February 19-22, 2020 at the Gaylord Opryland Hotel and Convention Center, Nashville, TN. Learn about the entire training event at this link or call the MACS office at 215-631-7020 x 304

Posted in Uncategorized | Leave a comment

A Nashville must see: The Grand Ole Opry

The MACS 2020 Training Event and Trade Show will take place in Nashville, TN from February 20-22, 2020 and one of the advantages of being in the home of Country Music is being able to visit the iconic Grand Old Opry which is located adjacent to MACS host hotel the Gaylord Opryland Resort and Convention Center.

There is no place better to soak up the culture of Country Music than at the Opry.
MACS has a block of tickets for the performance on Friday night, February 21 as an optional activity. The Gaylord provides a shuttle bus service to and from the Opry.

Register for the Grand Old Opry performance and all MACS 2020 Training Event activities at or call us at 215-631-7020 x 0.

Posted in Uncategorized | Leave a comment

Get your business on track with Rick White at MACS 2020 Training Event and Trade Show Feb 20-22 in Nashville, TN

Rick White
180 Biz

Every shop owner starts the same way; excited about running a business and becoming his or her own boss. Why then do some succeed while so many fail? It’s simple, really. The truly successful repair shop owner embraces the “business” side of his shop. He understands that to achieve the dream he needs to focus on planning and execution – not activity. This champion learns “the numbers”: what to watch; what to measure; what to modify. This is what KPIs (Key Performance Indicators) are all about. They are simply tools which successful shop owners use to see where they are today compared to where they want to be; identify quickly whether things are getting better or worse; highlight areas that need improving before they become problems. This fast-paced seminar draws you into the shop owner’s journey as he makes his business healthy and more profitable using KPIs.

Don’t miss this informative class and all the great mobile A/C technical training at MACS 2020 Training Event and Trade Show, Feb 20-22, In Nashville, TN.

Click here for all the information you need to meet up with us in Nashville. Come for the hot chicken stay for the pay-off in world class training.

Posted in Uncategorized | Leave a comment

Classes at MACS 2020 Training Event : Nissan and Infiniti New Mobile A/C Technologies

Some of the most highly anticipated classes at MACS 2020 Training Event are those taught by OEM representatives. MACS is happy to welcome Ed Simmons of Nissan-USA to present what is new in Nissan mobile A/C systems in 2020 and beyond including:

HVAC Systems to include the following:

R-134a transition to R-1234yf refrigerant on current and future models. 2019 LEAF electric vehicle climate control.

PTC heater booster system found on Titan diesel and LEAF vehicles. Networking of climate control systems.

Networking of climate control systems and more.

To register to attend MACS 2020 Training Event and Trade Show visit or call the MACS office to register by phone at 215-631-7020 x 304. Click here to see all the great mobile A/C training classes being offered.

Posted in Uncategorized | Leave a comment

HVAC Technology Changes that Make Modern A/C Systems more Challenging to Diagnose and Repair with Peter McArdle of Four Seasons

Peter McArdle
Four Seasons

One of the top-shelf A/C classes being taught at MACS 2020 Training Event is the challenge of change in mobile A/C with Peyter McArdle of Four Seasons. A myriad of changes to systems design and operation over the past ten to fifteen years can make diagnosing and  repairing a modern air conditioning system diabolically difficult. The greater  use  of  computer  controls  including  volume flow sensors, eVDCs (electronically controlled variable displacement compressors), electro-viscous fan clutches, evaporator thermistors, multi-speed cooling fans, active grille shutters, dual zone systems etc. can really darken your diagnostic day. Couple these technologies with changes in basic component design such as the use of flat  tube,  multi-pass, multi-path flow, sub-cooling condensers, idle stop evaporators, oil retention compressors etc. and it can be overwhelming to know where to begin your diagnosis of a poorly performing system.

“Join us for this class at MACS 2020 when we will explain some of these changes in detail and their impact on system operation and diagnostics. We will look at some of the issues and failures associated with these technologies and how best to cut to the diagnostic chase.”

Register now for MACS 2020 Training Event on the MACS website at

Posted in Uncategorized | Leave a comment

Training classes offered at MACS 2020 Training Event and Trade Show

MACS 2020 Training Event and Trade Show offers 32 different mobile A/C training classes, in the next blogs we are going to view them all!

Electrical Systems Power Management – Impact on HVAC Operation                                                                                                              

PETER ORLANDO Carquest Technical Institute

Winter Complaint “My rear defogger, heated seats and mirrors don’t seem to be working right.” Is it truly a systems malfunction or is the vehicle load shedding?

Summer Complaint “My A/C needs a charge.” Is it an A/C problem or is the vehicle load shedding? Can the HVAC system on a modern vehicle be telling us that there’s a bad battery on board? YES!

What percentage of time will the HVAC system be cycled OFF during a load shed level 3 event on a 2017 Chevy Malibu? Are there levels of load shedding? YES!

The customer’s awareness of this will begin gradually, and eventually they’ll bring the vehicle in for service. The technician will usually find ABSOLUTELY NOTHING wrong with the A/C or heating system.

The modern power management system on today’s vehicles is vastly different than just a few years ago. We are now measuring, calculating, and reporting the voltage, current, temperature, state of charge, health, and function across multiple networks to optimize vehicle performance. Ever realize you left the headlights on, and wonder how the battery didn’t go dead overnight? The answer is Power Management. However, as the vehicle begins to age, so does the battery. Consumer convenience of certain climate control system functions will be impeded, and at times, not appear to be working at all. The key to all of this is knowing what climate control systems functionality will be impacted by any electrical system deficiencies or degradation.

The class will include checking vital signs with a scan tool; load shed criteria and load reduction level counters; understanding net battery amp hours; proactive alerts: diagnostics and prognostics. Students that take this seminar will have a thorough understanding of domestic system load shedding, and the effect it has on HVAC system functionality.

To register for MACS 2020 Training Event visit the MACS website at

All MACS 2020 Training Event info is at this link.

Posted in Uncategorized | Tagged , | Leave a comment

Have you made your hotel reservations at Gaylord Opryland for MACS 2020 Training Event? Time is running out.

MACS Worldwide has made every effort to secure the best group room rate for you at the 2020  Training  Event  and Trade Show at the Gaylord Opryland Resort. The MACS negotiated rate for a single/double occupancy room is $199 plus tax and resort fee per night. For reservations, please go to the MACS 2020 Training Event page on our website for the reservation link, or call (888) 777- 6779.

Please remember to mention you are part of the MACS Training Event & Trade Show. Room reservations must be made by January 20, 2020, after which reservations and substitution request will be accepted only if hotel space is available. Please remember to keep your confirmation number. Please advise the hotel regarding any disabilities or special requirements. Check-in time is 4:00 pm and check-out time is 11:00 am. MACS attendees will receive a $5 discount on self-parking.

NOTE: Beware of bogus hotel reservation companies: MACS and the Gaylord Opryland Resort are NOT affiliated with any third party for booking hotel rooms. Should you be contacted to book your hotel room through a third party, please know this is likely a scam. Please report any suspect activity to MACS. Thank you.

Another thing to watch out for: Please ignore any unsolicited emails you may get from list brokers offering the full MACS 2020 registration list available for purchase through their organization. Please be aware that MACS never sells conference registration and contact lists to any brokers or third-party entities.

The MACS website is located at

To reserve a room at Gaylord Click here or call 888-777-6779.

Posted in Uncategorized | Leave a comment