They are noisy with or without vents. But normal noise is something we get used to. I have no idea if your unit is making more noise than normal.
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No man has a good enough memory to be a successful liar. Abraham Lincoln
2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch
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