× 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

Mahle ROU250
07/30/2026 in the HVAC Forum
Looking for a simple recovery system-- This Mahle rou250 looks pretty basic/simple. Has anyone got any experience with this unit or other comments? Thanks!
Leak detectors
07/16/2026 in the HVAC Forum
Just curious as to what everyone has found to be the best electronic refrigerant leak detectors?
2017 Subaru Forester A/C compressor failure
07/10/2026 in the HVAC Forum
So just wanted to put this out there for anybody that might run into a similar situation. This car came in with 30K miles on it and the a/c was not cool. Also a loud ticking noise could be heard from the compressor. The high side pressure was about 90 psi...
CPS fx3030
06/29/2026 in the HVAC Forum
We have a CPS FX3030 1234YF Machine, went to try to use it today and under the recovery mode it says the tank may be contaminated or incorrect refrigerant installed. We only use this machine for 1234YF only. The filter is at 75%, the tank has 7.17lbs left...
No ac clutch engagment
06/24/2026 in the HVAC Forum
[HVAC: 08 Jeep Wrangler Sahara 3.8L] Hi,i have no ac clutch engagement with codes b1001 and b10c1, both point to ac button pushed or stuck on. Go thru the diagnostics it suggest replacing the heater control,that did not fix it.Looking in the knowlege bas...

Automotive Sponsored Discussion Forums