Plenty of posts & info on fans on this forum but, I'm having warranty work done on my 2015 Rockwood Signature 8322SS & one issue was the noisy refrigerator. Dealer kept trying to tell us it was normal (really, listen to the fridge running while in the front bedroom, I think not). It was suggested that we change out the fan for a computer type "won't that void any warranty" ? answer was -- YES, it would. They eventually did their job in locating the problem, which was, Forest River forgot to put insulation around the fridge when building the TT.