Skip to main content

R-134a

Don’t overlook a diagnostic clue

September 13, 2022

When thinking about the topic of A/C diagnostic tools, a recovery, recycle, recharge machine (R/R/R machine) is not one of the first tools that comes to mind.  It may not come to mind at all in the world of inexperienced technicians. 
Read Article >

Do you know about the B1479 trouble code?

August 3, 2022

If you work on Toyota, Lexus and Scion A/C systems, chances are that you have encountered a B1479 diagnostic trouble code on a system that will not operate. 
Read Article >

It isn’t blowing cold enough

June 29, 2022

"It isn't blowing cold enough.” Most any auto repair shop that does A/C work will often hear customers say this phrase. It can be the result of any number of things that can be wrong with an A/C system.  Often it is a case of common things such as, a low refrigerant charge, a refrigerant overcharge, contaminated refrigerant,  a blend door issue, a cooling fan problem, or maybe a weak compressor.
Read Article >

The importance of A/C system oil balancing

June 21, 2022

Sometimes we encounter information where directions instruct us to drain the compressor being removed from a system and measure the amount of oil that drains out. Then the next step is to subtract this number from the number of ounces that are supposed to be in the shipped replacement compressor.
Read Article >

Robinair and MACS to certify 500 technicians

May 19, 2022

MACS member Robinair is partnering with the Mobile Air Climate Systems Association (MACS) to provide free Section 609 test prep webinars for training and certification for technicians this summer on June 16, July 13, August 17, and September 14.
Read Article >

The desiccant myth

April 12, 2022

There is a myth that exists involving A/C service work and driers that seems to come up from time to time.  I have encountered it when handling tech calls and have seen it come up in A/C forums. Read more to find out what it is.
Read Article >

Talking refrigerant safety

March 15, 2022

Let's say I brought my car in to your shop with an A/C problem and described what was going on with it. You might ask me if myself or someone else had worked on it.  Right?
Read Article >

What does a MACS Section 609 card look like?

March 10, 2022

MACS occasionally receives reports from the field of a technician being refused purchase of refrigerant for not having a proper Section 609 card. Usually this is due to the technician not producing the right card or the counterperson not understanding what a MACS Section 609 card looks like. What does a MACS Section 609 card look like?
Read Article >

Refrigerant supply, pricing and safety

March 8, 2022

What I'm hearing about refrigerant supply and pricing this year reminds me of a similar period in the mid-2000s. It was springtime, just before the start of A/C season.  Supplies of R-134a were tight and the price had come close to tripling from the prior year.
Read Article >

Refrigerant reminders

March 1, 2022

It could be a challenging year keeping adequate supplies of R-134a on hand and it will be more expensive.
Read Article >