Skip to main content

03Mar

This course describes “Best Practices” service and repair methods pertaining to mobile A/C systems. Its “Boot Camp” style approach delivers “everything you need/nothing you don’t” in a fast-paced, highly informative…

Read More >

03Mar

Join MACS for our live Section 609 test prep webinar for refrigerant handling training and certification.  The webinar will take approximately 90 minutes. After the webinar, technicians will take a…

Read More >

02Feb

Join MACS for our live Section 609 test prep webinar for refrigerant handling training and certification.  The webinar will take approximately 90 minutes. After the webinar, technicians will take a…

Read More >

12Dec

Join MACS for our live Section 609 test prep webinar for refrigerant handling training and certification.  The webinar will take approximately 90 minutes. After the webinar, technicians will take a…

Read More >

10Oct

So now it is time to provide the correct answer along with information on why it is correct and also information on why the others are incorrect.

Read More >

09Sep

What is Peter Orlando’s class Cooling Fan Circuit Analytics about? It all began decades ago as a mechanical fan attached to the water pump with and without a fan clutch.  And now it has evolved into an efficient complex electrical motor control of cooling the modern internal combustion engine.

Read More >

09Sep

There is no doubt that when it starts getting hot outside, your shop gets slammed with customers asking for help with their A/C systems. Same thing happens here at MACS, except we get slammed with A/C tech support calls.

Read More >

05May

The new refrigerant purchasing rules that took effect January 1, 2018 have had service shops, distributors and the MACS office in an uproar. At the MACS office, the faxes, emails,…

Read More >

08Aug

Twenty years ago, we could break down all areas of HVAC diagnostics into three categories when you really think about it. It was and still is called Heating, Ventilation, and…

Read More >

08Aug

By Steve Schaeber, MACS Technical Editor On August 8, 2017, a US District Court of Appeals reversed a 2015 EPA rule which removed R-134a from their SNAP list of acceptable…

Read More >