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Electrical System

Vehicle power management and HVAC

September 3, 2019

September/ October 2019 ACTION Magazine Vehicle power management and climate control In the case of many late model vehicles, there are more and more systems utilizing electrical power management strategies...
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The future is electric!

June 6, 2019

June ACTION 2019 Hybrid and electric vehicle air conditioning compressor hardware, power controls and diagnostics For more than 15 years, hybrid and electric vehicles have been using electric air conditioning...
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Engine cooling fans-enough time?

October 16, 2017

Please be aware after January 1, 2018 a Section 609 certification card will be required to purchase R-12, R-134a, or R-1234yf cylinders of 2 pounds or more. Distributors will be...
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Blower motors are essential to proper HVAC performance

September 8, 2017

The blower motor can make or break HVAC performance. Solid blower motor troubleshooting, along with an attention to detail, will help ensure that your customer’s HVAC system performs properly, the...
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Hybrid and battery electric vehicle A/C

December 31, 2016

By Steve Schaeber, MACS Technical Editor Internal combustion engines have powered our transportation for decades, including the cars and trucks we drive each day. Over the years we’ve seen attempts...
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Denso uses A/C to alert drowsy drivers

September 6, 2016

By Steve Schaeber, MACS Technical Editor The basic technology has been around for a while now, going back at least 10 years on Toyota and some luxury car brands such...
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Repeat blower motor issue

July 25, 2016

By Steve Schaeber, MACS Technical Editor An old boss of mine used to have a saying that goes something like: I ain’t got time to be doing the same thing...
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They don’t build ’em like they used to

May 4, 2016

By Andrew Ross, publisher Jobber News Magazine, Canada Note: Andrew Ross was kind enough to share his April 2016 editorial for Jobber News with us. We have reprinted it on...
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Getting ready for A/C repair season

March 16, 2016

  By Andy Fiffick, Chairman and CEO MACS Worldwide , Owner Rad-Air Complete Car Care, Cleveland, OH Getting (and keeping) our shops “service-ready” is a moving target – one that...
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I'd rather keep my fingers, thank you!

April 13, 2015

By Steve Schaeber, MACS Manager of Service Training While visiting a local shop and taking some pictures for this edition of ACtion, I got to talking with one of the...
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Do you know about electric cooling fan operating strategies?

March 2, 2015

Download the March 2015 issue of MACS ACTION magazine to learn about electric cooling fan strategies and more!
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Blower motor draw

September 17, 2014

By Steve Schaeber, MACS Technical Editor Recently, I posted to the MACS WordPress blog and covered a fuse issue on a 1999 Volkswagen Jetta. In response to my post, I...
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