CPI Fluid Engineering is a new MACS exhibitor
September 14, 2022
CPI, founded in 1971, is a global expert in engineering fluids for challenging applications in heat transfer and compression. “Our mission is to advance the industries we serve by providing world-class engineered performance fluids, unmatched customer support and innovative collaboration.”Read Article >
Don’t overlook a diagnostic clue
September 13, 2022
When thinking about the topic of A/C diagnostic tools, a recovery, recycle, recharge machine (R/R/R machine) is not one of the first tools that comes to mind. It may not come to mind at all in the world of inexperienced technicians.Read Article >
UAC returns as a MACS Exhibitor
September 13, 2022
UAC is a family owned and operated company since 1988, from Mansfield, TX specializing in Temp Control and Engine Cooling products.Read Article >
IGas To Exhibit at MACS 2023 Trade Show
September 9, 2022
iGas USA, Inc. offers a full range of refrigerants. Originally joining MACS in 2017, iGas explains, “Our strength, and our mission, is to develop and bring to the market innovative solutions that will have a positive effect on a company's work and business. Each day we strive to design creative, safe and high-quality products that will: assist in lowering your cost of business, make daily work requirements easier, faster, and more economical and improve working conditions and the environment.”Read Article >
You Knucklehead, you caused this compressor to lock up!
September 7, 2022
Last week's article ended with the following: "As I was completing the job, it hit me what had happened and my first thought was: You Knucklehead, you caused this compressor to lock up!"Read Article >
MACS Welcomes ATech as an exhibitor
September 7, 2022
ATech Training was founded in 1984 with a desire to develop products that aid instructors in presenting a hands-on approach to teaching and learning the skills of diagnosing and repairing vehicles.Read Article >
Airworks will exhibit at MACS 2023 Trade Show
September 6, 2022
MACS is happy to welcome Airworks as a return exhibitor to MACS Training Event and Trade Show . The big event will take place February 2-4, 2023, at the Gaylord Opryland Resort and Convention Center in Nashville, TN. The Trade Show will be on Friday, February 3 from 10:30am-4pmRead Article >
Why did the compressor lock up, part 2
August 16, 2022
The relay was sticking in the on position and the compressor would not cycle off when the clutch cycling switch turned the power off to it.Read Article >
An expansion valve myth explored
July 26, 2022
I have encountered many tech calls where a technician had replaced an expansion valve because of a problem with an evaporator freezing up and was frustrated because that did not fix the problem.Read Article >
Improving A/C cool down time
July 19, 2022
If there is an issue with an A/C system, then obviously that needs to be fixed and that will aid in cool down time. However, if a system is working properly and a customer is complaining, then the focus needs to shift toward educating the customer on steps they can take to improve cool down time.Read Article >
Diagnosing Faults on Modern Motor Vehicles
July 8, 2022
Motor vehicles have become increasingly more complex over the last two decades to meet the ever-tightening emissions regulations and increased fuel economy requirements, as well as passenger comfort and safety. This added complexity means technicians are flooded with additional data when diagnosing faults on vehicles. Below is a table outlining the difference between a modern vehicle and a vehicle from 20 years ago. This is only a high-level example to illustrate the differencesRead Article >
It’s still not blowing cold enough
July 6, 2022
This customer came in with this car (he provided the vehicle information) and said it isn't blowing cold enough and wants me to make it blow colder. He just recently bought it and this is the first “hot spell” we’ve had since he’s had it.Read Article >