Ok, we bought our first 5th wheel this year and are a little perplexed by an air conditioning issue. Its a 2015 Jayco 339FLQS. Front living room. It came with a single 13.5K air unit. Mounted just sli...
IMO you need a 15K A/C unit or at least add a 2nd one and run them both. Is there a vent in LR? May want to crack that open and let some warm/hot air out.