Like you we have the 2015 ACE 30.2. What slide problem are you having?
When we purchased ours we decided to buy an extended service contract because of that slide, though we did not purchase it from the dealer. The only issues we have had with the slide were really battery issues that was causing us to regularly do resets. The slide is very sensitive to low charge or weak charge battery, and our batteries were reading fine but failed under a load test. We replaced our two 12V with two high level 6V's and no troubles since, but we lubricate 4x a year.
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