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A Change in Temperature

February 10, 2021

Using a contact thermometer, they quickly discovered 50° on the suction line at the expansion valve, and down at the compressor it read 96°. Along any length of hose or tube, there should be very little change in temperature.
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Compressor Oil: When is it enough?

February 9, 2021

But how do we know that a system has the correct amount in it to start with?
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MACS Board of Directors Elects 2021 Officers

February 8, 2021

The board of directors of the Mobile Air Climate Systems Association (MACS) met virtually Friday, February 5, 2021, and elected officers for the year. Andy Fiffick of Rad Air Complete...
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Stop by macsmobileairclimate.org for a visit

February 5, 2021

Visit MACS at macsmobileairclimate.org
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Doing the repair right

February 4, 2021

By Richard Hawkins, MACS Contributor The focus in the two previous weeks articles on the Chevy Tahoe was on what went wrong and what should have been done to correct...
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The beginning of a New year, new MACS!

February 1, 2021

The Mobile Air Conditioning Society has rebranded to become the Mobile Air Climate Systems Association (MACS). During a year-long project, the MACS board and staff worked with the Blue Door...
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Section 609 Certification Prep Webinar & Test

January 27, 2021

Join the Mobile Air Climate Association (MACS) Worldwide for a our Section 609 test prep webinar for training and certification. The webinar will take approximately 90 minutes. At the end...
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Tales from the helpline: When they don’t know, what they don’t know!

January 26, 2021

By Richard Hawkins, MACS Technical Contributor Last week, my topic of discussion for the MACS blog was a tech call about an A/C system which was plagued by a huge...
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MACS announces new 2021 Training Event and Trade Show Dates

January 25, 2021

The MACS 2021 Training Event and Trade Show will take place Thursday, September 30 through Saturday, October 2, 2021 at the Rosen Centre Hotel and Convention Center in Orlando, Florida....
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How much compressor oil is too much?

January 19, 2021

By Richard Hawkins, MACS Technical Contributor A lot of interesting calls are encountered when working on an A/C tech help line and a large percentage of them involve lubrication issues...
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