× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

Automotive HVAC Forum

Professional automotive forum for discussion of heating, ventilation, and air conditioning maintenance and repairs. Includes discussion of refrigerants, refrigeration lubricants, system analysis and diagnostics, filtration, HVAC-specific tools & equipment, best practices, and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Discussion Forum.

Recent Automotive Discussions in the Automotive HVAC Forum

1234yf Hydrogen Leak Detector
04/18/2025 in the HVAC Forum
I'm ready to equip with Nitrogen 95 / Hydrogen 5 leak detection. , Any experiences with the following detectors ? Vulkan Loktracer TLD500, Robinair LD9 VW VAS 523003A Thanks Greatly & have a Blessed Easter !
Dodge Temp displays 22 Celsius
04/12/2025 in the HVAC Forum
[HVAC: 12 Dodge Journey SXT 3.6L] Looking for some direction on this one. 2012 Journey with 8" touch screen & Automatic Temp Control. HVAC temp displays 22 c. If you swipe up or down on the screen the temp changes for a few seconds, then goes back to 22....
venting refrigerant
03/27/2025 in the HVAC Forum
[HVAC: 08 Chevrolet Corvette 6.2L] We have been working on this for 4 or 5 weeks and cant make sense of it . The car came in after having vented, we charged it and found no problems , fans working , high side at 200 ( the service port and the cars pressu...
Denso a/c condensers, for or against
03/25/2025 in the HVAC Forum
Greetings iATN, I'm curious about current feedback and concensus regarding Denso a/c condensers, having seen reports of trouble with restrictions. Please see below: Joe Baber------- "I had several issues with Denso condensers (all flow issues, high side r...
Leaking Schraeder valves
03/18/2025 in the HVAC Forum
Had another shop call me and ask if I've had any problems with valves leaking, he states almost every vehicles recharged at his shop comes back needing to be serviced again due to lost refrigerant (134A and 1234YF) because I only install AC in old cars th...

Automotive Sponsored Discussion Forums