We also have a 2014 Jayco 185rb with the same problem and from all of my research the problem with the ac is that it is a window unit that they have used as a wall unit. The vents on the sides and top of the window units are designed to hang outside and draw the condenser air from outside. These units are drawing the air from inside the trailer because they vents are inside, which is disrupting the air flow and causing the fridge not to cool. Our trailer is currently in storage at the lake, but we will be bringing it back home in 3 weeks and it will be going back to our dealer for a solution. Although, I have learned the only way to properly fix this is to have roof mount air. This is a serious design flaw and we are hopeful that Jayco will step up and correct the wrong for all of us that bought these trailers.