All the refrigerant leaked out of my dash air after 3 years in our 2021 MA. Recharged it and works great again. Added a can of leak stop. The leak is very slow but if it leaks down again in less than a year I will find the leak. I did put dye in it to help find the leak when ready.
2021 Newmar Mountain Aire 4551, Spartan K3 Chassis, 11.9 Liter Cummins X12 towing 2021 Jeep Wrangler with Blue Ox Avail. Retired Software Engineer