By: Alexa Murphy Spring is here! With a hopeful mind, we look forward to warmer weather, short sleeve shirts and shorts. We also look forward to the upcoming season of…
System Service Tips by Larry Turay, AAM, Contributing Editor Everyone has a set routine to follow during the service process when replacing failed components. Sometimes after we have done a…
Honeywell has filed a SNAP application with the US EPA for approval to offer R-1234yf as a retrofit for R-134a. In 2022, the EPA received a SNAP application from Koura….
For years, we have been told that the primary seal for the A/C service ports lies in the service port cap. Yet day after day, technicians let vehicles leave the…
The European Chemicals Agency (ECHA) continues to accept comments on the proposed use restrictions to thousands of chemicals commonly found in automotive and other applications related to PFAS. PFAS stands…
By: Richard Hawkins, MACS Contributor That is a question that comes up countless times when doing mobile A/C work. When working on a car, light truck or SUV, it is…
MACS member Robinair is sponsoring this webinar. They have joined forces with MACS to offer an incredible opportunity for free Section 609 test prep webinar and online test. These webinars aim to…
THIS WEBINAR IS SOLD OUT. MACS member Robinair is sponsoring this webinar. They have joined forces with MACS to offer an incredible opportunity for free Section 609 test prep webinar and…
by Richard Hawkins Happy New Year to everyone. Hope you all had a good holiday season. We will begin the year on something of a light note. I am sometimes…
In the Understanding and Diagnosing A/C class, you’ll go beyond minimum requirements for recovery, evacuating, recharging, and recycling by offering real world examples in diagnosing and repairing A/C electrical, computer / BCMs, climate control and electronic components. Most of today’s vehicles come equipped with electronically controlled A/C systems.
In the last 120 years, automotive passenger heating has evolved dramatically from open carriage-type automobiles with little occupant protection from the elements to complex electric vehicle (EV) heating, ventilation, and air conditioning (HVAC) systems.
That’s right. Two days later the customer called and said it was cooling terrible. I had him bring it back in and put the gauges on it and checked the vent temperature and it was running about 325 on the high side and about 45 on the low side and the vent temperature was about 55 as I indicated earlier. Of course, it was in the low 90’s that day.
