Staying RRR current
October 25, 2022
The refrigerant checked out fine. No contamination with other refrigerants and no air contamination. Their machine pulled 30 ounces out of that system.Read Article >
Refrigerant recovery and system diagnostics
October 19, 2022
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.Read Article >
The ambient temperature differences
October 11, 2022
That hose is easy to get to, so I whipped it off of there and had the new one on probably in less than 3 minutes. The owner was standing there watching and thought I was finished when I tightened up the second connection. He said he was going to go up and pay and would be back to get the car and hit the road.Read Article >
TEXA joins MACS Trade Show
October 11, 2022
TEXA joins MACS Trade Show! MACS Training Event and Trade Show will take place February 2-4, 2023, at the Gaylord Opryland Resort and Convention Center in Nashville, TN. TEXA joined MACS as a member in 2018 and is supporting MACS Training Event as a Silver Co-Sponsor of the Welcoming Reception at the Wildhorse Saloon in downtown Nashville.Read Article >
Refrigerant overcharge
October 5, 2022
A shop could end up with an overcharge of refrigerant in a system and a resulting performance problem and waste a lot of time trying to diagnose what the problem is.Read Article >
The refrigerant left in a system after recovery
September 27, 2022
First, here is a brief review of the results of the R/R/R machine test covered in last week's article. A J2210 R/R/R machine left 9 ounces of refrigerant in a system which had contained 27 ounces, after doing a "complete" recovery.Read Article >
An RRR Machine Test
September 20, 2022
The purpose of the test was to compare the recovery capability of two different R-134a R/R/R machines. One was an older machine which met the old SAE standard J2210. The other was a newer machine which met the SAE standard J2788 which was adopted in 2007and is still the latest standard for R-134a machines.Read Article >
Robinair returns as an exhibitor and Silver sponsor
September 15, 2022
Robinair is a global leader in service tools and equipment based in Owatonna, Minnesota. Products serve the heating/ventilating/air conditioning/refrigeration (HVAC-R) and mobile markets, which includes the automotive aftermarket along with other industries such as agriculture and construction.Read Article >
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 >
Improving A/C cool down time
July 19, 2022
If there is an issue with an A/C system, then obviously that needs to be fixed and that will aid in cool down time. However, if a system is working properly and a customer is complaining, then the focus needs to shift toward educating the customer on steps they can take to improve cool down time.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 >
A new refrigerant for Trucks?
May 4, 2022
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 CansRead Article >
