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Technician

Airsept to display at MACS

October 17, 2022

Airsept to display at MACS Training Event and Trade Show. MACS training event will take place February 2-4, 2023, at the Gaylord Opryland Resort and Convention Center in Nashville, TN. Located in Atlanta, GA, Airsept has been an active member of MACS since 1997.
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Learn how to make your team un-poachable

October 12, 2022

Learn how to make your team un-poachable is a business strategy class you can attend at MACS 2023 Training Event and Trade Show. Rick White of 180BIZ is a dynamic business leadership speaker.
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The ambient temperature differences

October 11, 2022

That hose is easy to get to, so I whipped it off of there and had the new one on probably in less than 3 minutes.  The owner was standing there watching and thought I was finished when I tightened up the second connection. He said he was going to go up and pay and would be back to get the car and hit the road.
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Motor Age Training returns as an exhibitor

October 7, 2022

Motor Age Training returns as an exhibitor to MACS Training Event and Trade Show . A long-time member and supporter of MACS, they are also a Silver Sponsor of the training event. Register now! The MACS Training Event will take place February 2-4, 2023, at the Gaylord Opryland Resort and Convention Center in Nashville, TN.
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Refrigerant overcharge

October 5, 2022

A shop could end up with an overcharge of refrigerant in a system and a resulting performance problem and waste a lot of time trying to diagnose what the problem is.
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The Auto Prof joins MACS Training Event

September 23, 2022

The Auto Prof is an automotive technical training organization. Company principal, Mike Bailey is a licensed automotive technician and instructor since 1991.
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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.”
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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. 
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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.
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Unlocking the compressor Lock up, PT. 2

August 30, 2022

I was driving the van home in the afternoon. It was about 45° F outside and the heater was on. It had been an uneventful 15 to 20 minutes’ drive at about 55 to 60 mph. Slowing down to make a 90 degree turn on to a different road, a faint grinding noise was heard. I rolled the window down and drove along at about 5 MPH and could hear the noise more distinctly. The next step was to pull over into a parking lot and leave the engine running and raise the hood.
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Why did the compressor lock up?

August 10, 2022

All too often when a compressor lock-up occurs, the compressor itself is blamed for the lock-up. While it is possible for a manufacturing defect to cause a lock-up, there is usually a problem related to the service work or a problem with the system that is the culprit.
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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.
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