× 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
Re: Robinair AC690PRO Fault code of 'HIGH PRESSURE'
Posted to HVAC Forum on 2/10/2020 1 Reply

...

...When you open the red valve to purge the air out, refrigerant "boils " off to replace the head pressure,in doing this, it make it cool somewhat...so...you would need to let it stabilize again if you purged very much at one sitting...yes ?...Because th... Login to read more.

1 Replies Received (View Replies)