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609 Certification

Pass the temperature probe

May 4, 2021

The first step is to run the A/C system for a few minutes to let it stabilize. Then both probes should be connected side by side at both points that will be temperature tested in the system. For example, if you were testing the temperature drop across the condenser, this would need to be done on both the discharge line and the liquid line.
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Today is Earth Day

April 22, 2021

Today is Earth Day!
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Does the compressor contain oil?

March 17, 2021

A question that comes up frequently on A/C tech lines is: Does the compressor contain oil and if so, how much?
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Helpful tips to register for MACS online training clinics

March 5, 2021

Helpful tips on how to register for a class on the MACS website
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Let everyone know you are Section 609 certified

February 22, 2021

New Section 609 work t-shirts in black featuring the new MACS logo.
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It’s not your Daddy’s Section 609 certification anymore

May 17, 2018

By Steve Schaeber, MACS Manager of Service Training If you were Section 609 certified before 2015 and you’re scrambling to find your card to buy refrigerant this Spring that’s fine,...
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The time for mandatory Section 609 recertification is now

May 3, 2018

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,...
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Gen 2 Ridgeline cools with R-1234yf

January 18, 2017

  By Steve Schaeber, MACS Technical Editor The 2017 Ridgeline is the second generation of Honda’s midsize pickup truck, redesigned and brought back in June 2016 following a short 2...
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