[MidMOTraveler]

I had 1 creeping down while driving. Like you I searched for a leak but really couldn’t find one.
I called Lippert and they had me take the camper in to be checked.
I made an appointment and told CW I was traveling through the area but needed them to check it before Lippert would authorize repair.
CW got us in and out in 2 hours, found 2 cylinders leaking using some type of pressure test. Lippert authorized replacement under warranty and CW reimbursed the $75 service charges for the shop time. CW ordered parts and worked us in before we left a couple weeks later.
Might check with Lippert.