Ok so I have a 2017 Citadel. I purchased it brand new, have had it about 2 years now. My ac always worked perfect. About 2 months ago I noticed that while in automatic ac control the ac no longer got cold, it was also very humid. Almost like the recirculation wasnt on (when ac on low). Took it into dealership and they said this was normal. This is not normal. Ac no longer controls the humidity, it no longer cools, heats up but not well. This is only in auto mode. What can it be?