- Don't miss the Friday morning general session at MACS 2020 Training Event and Trade Show-like a global town hall meeting for the industry!
- MACS 2020 Trade Show will be on Friday, February 21 from 10am-4pm in Nashville, TN
- 2020 mobile A/C buyer's guide and exhibitor list in MACS February 2020 issue of ACTION magazine
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Monthly Archives: August 2014
DOWNLOAD the digital issue of MACS September/October 2014 ACTION Magazine to your desktop of mobile device. It is packed with great information and the just released program for MACS 2015 Training Event and Trade Show.
If your shop’s A/C specialist is busy and you want to get the diagnosis started, you can assign the preliminaries to any technician in the shop. Here is what GM asks a technician to be able to provide when he … Continue reading
Too many technicians fail to get all the information they really need when a car comes in with a “poor A/C performance” complaint. Okay, not all motorists are observant, but you can at least try. The following are based on … Continue reading
1. Clean the front of the condenser. The debris that builds up between the fins can really raise the head pressures, and that not only affects performance but can cause slipping of a clutch if voltage is marginal. If a … Continue reading
MACS has put together the ultimate, total vehicle climate and thermal management, 3-day, live training event with the best instructors in the business. Download the program now and get a good look at the great training that is on tap! … Continue reading
By Paul Weissler, MACS Senior Technical Correspondent When an HVAC case electric actuator fails and you get a hard code, the fix should be straight- forward: replace the actuator. Ditto if a trouble tree calls for a new actuator. There … Continue reading
Humidity should be a major consideration in A/C performance tests. When humidity is very high, the A/C system expends most of its effort wringing the moisture out of the air. That’s the way it should be as we’re more comfortable … Continue reading
No automotive A/C refrigeration system is completely tight, and cooling performance can be marginal when the refrigerant charge is not correct. On today’s small capacity systems, that’s just a few ounces. One study showed that just a slightly low charge … Continue reading
By Paul Weissler, MACS Senior Technical Correspondent The evaporator is out of sight, but with A/C technicians it can’t be out of mind. When you can’t find a leak anywhere else, it’s the part that becomes suspect. By now, experienced … Continue reading
By Steve Schaeber, MACS Technical Editor Lots of people have all kinds of stuff that they keep in their cars all the time. Typical items include CDs, pens, tissues, tools, coins, registration, insurance, repair papers, sunglasses, etc. But there’s one … Continue reading