You might want to check your batteries on the 2015. We have a full wall slide on our 2015 ACE 30.2. On vaca in Nebraska this summer our slide did the same thing. A really great dealer in Cheyenne, Wyoming looked it over and said the most likely culprit was our Harris batteries. Even though they were showing fully charged, he thought they were draining too quickly while he ran through some tests and that they might not be working at full load capacity. We had him change out the batteries and have not had an issue since.
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