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09Sep

Access to the complimentary Robinair sponsored webinar and test is full.  However, you can still participate in this webinar.  The cost is $55 and includes the online test and prep…

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07Jul

I have encountered many tech calls where a technician had replaced an expansion valve because of a problem with an evaporator freezing up and was frustrated because that did not fix the problem.

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05May

EPA has listed HFO-1234yf under the Significant New Alternatives Policy Program for Motor Vehicle Air Conditioning in Non-road Vehicles and Servicing Fittings for Small Refrigerant Cans

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04Apr

MACS celebrates Earth Day 2022

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02Feb

Meet MACS new president, Peter Coll

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02Feb

As mentioned in last week’s article, the first thing I did with the machine was check the pressure of the refrigerant in the tank.  It was extremely high (well over 400 PSI) indicating there was a refrigerant contamination problem. 

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02Feb

A customer driving a 2014 BMW 328i arrived at the college’s 2nd-year electrical lab reporting his illuminated check engine light. The customer had no complaints other than the light. The vehicle had just over 82K miles showing on the odometer. A student (Phil) assigned to the BMW performed a review with a scan tool, and a single code (P0597 – Thermostat Heater Control Circuit Open) was present.

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01Jan

MACS is changing leadership. Elvis L. Hoffpauir, is stepping down at the end of January 2022 from his duties as MACS president and chief operating officer to enjoy retirement. Following a 42-year distinguished career at the Mobile Air Climate Systems Association (MACS), Elvis will transition to past president and association advisor.

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01Jan

We covered a base line test conducted with 0% air contamination and provided pressure and temperature information.  This week we will provide pressure and temperature information experienced with 7.7% air contamination and 18.9% air contamination. 

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01Jan

Attend the best mobile air conditioning training classes available!

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